HVAC Training Basics for New Technicians and Students! Refrigeration Cycle!

2024/06/0601:46:04 digitals 663432

HVAC Training Basics for New Technicians and Students! Refrigeration Cycle! - DayDayNews

HVAC Training Basics for New Technicians and Students! Refrigeration Cycle! - DayDayNews

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At present, I believe that many friends are looking forward to the release of Huawei’s new phones and the new version of the Hongmeng OS 3.0 operating system. Previously, many people speculated that the first device to launch the Hongmeng OS 3.0 system is the Huawei Mate50 series - DayDayNews

At present, I believe that many friends are looking forward to the release of Huawei’s new phones and the new version of the Hongmeng OS 3.0 operating system. Previously, many people speculated that the first device to launch the Hongmeng OS 3.0 system is the Huawei Mate50 series

Hongmeng OS 3.0 is about to be released, may Huawei Mate50 be launched first? Three key pieces of information worth looking forward to

06/26 1701

Today, the famous analyst Ming-Chi Kuo released his latest prediction for the new iPhone on a foreign social platform. The prediction shows that the iPhone will start to use a periscope telephoto lens in 2023, and the cost of the camera module will increase. - DayDayNews

Today, the famous analyst Ming-Chi Kuo released his latest prediction for the new iPhone on a foreign social platform. The prediction shows that the iPhone will start to use a periscope telephoto lens in 2023, and the cost of the camera module will increase.

iPhone 14 is not worth buying! Apple iPhone 15 Pro Max revealed to use periscope telephoto lens

06/25 1922

In recent years, the concepts of environmental protection and conservation have been deeply rooted in the hearts of the people. Most people choose to recycle their old electronic products. Some luxury products are also purchased on the second-hand trading market. Today’s second-h - DayDayNews

In recent years, the concepts of environmental protection and conservation have been deeply rooted in the hearts of the people. Most people choose to recycle their old electronic products. Some luxury products are also purchased on the second-hand trading market. Today’s second-h

Don’t buy a second-hand Mac casually. If you want to buy it, you must choose a regular second-hand trading platform.

06/25 1655

Since Huawei withdrew from the battle for 5G mobile phones, people thought that the biggest beneficiary would be Xiaomi. However, judging from the data, OPPO's domestic growth rate is more obvious, especially in the offline mobile phone market, where it still occupies the absolut - DayDayNews

Since Huawei withdrew from the battle for 5G mobile phones, people thought that the biggest beneficiary would be Xiaomi. However, judging from the data, OPPO's domestic growth rate is more obvious, especially in the offline mobile phone market, where it still occupies the absolut

Dropped from 1,899 yuan to 1,289 yuan, Snapdragon 778G + 5,000 yuan battery, OPPO thousand yuan machine is also very good

06/25 1512

The iQOO 10 series mobile phones were previously announced to be released on July 19. The new phones are available in two versions: Legend Edition and Track Edition. The former uses the classic legendary three-color pattern with new white silicone leather, while the latter uses h - DayDayNews

The iQOO 10 series mobile phones were previously announced to be released on July 19. The new phones are available in two versions: Legend Edition and Track Edition. The former uses the classic legendary three-color pattern with new white silicone leather, while the latter uses h

iQOO 10 Pro appears on benchmarking website: equipped with Snapdragon 8+, single-core score is as high as 7374

06/25 1708

According to news on July 14th, blogger @Magic Technology Jun broke the news that TD Tech Communication Technology Co., Ltd. will launch a new phone TD Tech P50 Pro, and this machine looks like the Huawei P50 mobile phone. (Picture from the Internet) According to previous news, t - DayDayNews

According to news on July 14th, blogger @Magic Technology Jun broke the news that TD Tech Communication Technology Co., Ltd. will launch a new phone TD Tech P50 Pro, and this machine looks like the Huawei P50 mobile phone. (Picture from the Internet) According to previous news, t

Powered by Snapdragon 888 5G chip, TD Tech P50 Pro appears, looking like Huawei P50

06/25 1053

[Mobile China News] Recently, Mobile China learned that the Motorola G32 has passed the NCC (Taiwan Wireless Products) certification. The model number of this new phone is XT2235-3. The NCC certification list also shows real-time photos of the phone and phone box. Photos of the M - DayDayNews

[Mobile China News] Recently, Mobile China learned that the Motorola G32 has passed the NCC (Taiwan Wireless Products) certification. The model number of this new phone is XT2235-3. The NCC certification list also shows real-time photos of the phone and phone box. Photos of the M

Motorola G32 passes certification and is equipped with Unisoc T606. This is what the real machine looks like

06/26 1976

I don’t know if you have noticed, but in the past two years, new phones in the entire smartphone market have generally lacked telephoto lenses. This has made many mobile phone photography enthusiasts very unhappy. The reason is simply that the cost of the telephoto lens itself is - DayDayNews

I don’t know if you have noticed, but in the past two years, new phones in the entire smartphone market have generally lacked telephoto lenses. This has made many mobile phone photography enthusiasts very unhappy. The reason is simply that the cost of the telephoto lens itself is

There are already 20 telephoto mobile phones in 2022, but only these five are worth buying. Is it the right one to buy this time?

06/25 1278

Whenever I recommend SIVGA, there are always people who are curious about the origin of this brand. Is it a domestic brand? Why haven’t they heard of it? Sometimes the lack of brand awareness directly dissuades a wave of users who really have corresponding needs, and I understand

An almost ideal open style portable headset - SIVGA SV023

06/25 1614

What I am unboxing for you today is a new projector from ViewSonic, model TX10HD. This is a 1080P machine with a 0.65-inch DLP chip. ViewSonic has previously launched many models with similar positioning, such as PX701HD and so on. These models are relatively cost-effective and u - DayDayNews

What I am unboxing for you today is a new projector from ViewSonic, model TX10HD. This is a 1080P machine with a 0.65-inch DLP chip. ViewSonic has previously launched many models with similar positioning, such as PX701HD and so on. These models are relatively cost-effective and u

Short throw + LED light source + large chip DLP—ViewSonic TX10HD projector experience

06/26 1817

iPhone 13 is currently the best-selling smartphone, and it has ranked first in monthly sales since its release. As a flagship phone, it not only does not have a high refresh rate screen, but also only has 4GB of running memory, but even so , iPhone 13 can still achieve such excel - DayDayNews

iPhone 13 is currently the best-selling smartphone, and it has ranked first in monthly sales since its release. As a flagship phone, it not only does not have a high refresh rate screen, but also only has 4GB of running memory, but even so , iPhone 13 can still achieve such excel

Just the price difference? Analysts say iPhone 14 will sell better than iPhone 13

06/27 1801

It's now mid-July, and I want to buy a cost-effective smartphone for my dad. I looked at it online for a long time, and finally couldn't stand the Honor 20pro. The front of this phone is equipped with a 6.26-inch 1080P LCD full screen, which combines the power button and the side - DayDayNews

It's now mid-July, and I want to buy a cost-effective smartphone for my dad. I looked at it online for a long time, and finally couldn't stand the Honor 20pro. The front of this phone is equipped with a 6.26-inch 1080P LCD full screen, which combines the power button and the side

I bought a new mobile phone for my dad. The price/performance ratio is pretty good.

06/27 1937

The processor of this phone is equipped with HiSilicon's Kirin 980 processor and is manufactured using a 7nm process. It is also equipped with Mali-G76 graphics processor, which has great performance! It has four rear cameras of 48 million pixels + 16 million pixels + 2 million p - DayDayNews

The processor of this phone is equipped with HiSilicon's Kirin 980 processor and is manufactured using a 7nm process. It is also equipped with Mali-G76 graphics processor, which has great performance! It has four rear cameras of 48 million pixels + 16 million pixels + 2 million p

I bought a good-looking smartphone for my mother.

06/27 1544

Friends who are familiar with display devices should have noticed that the term "Mini LED" appears frequently on various display devices launched in recent years. Compared with LCD and OLED, Mini LED takes into account the advantages of both. It is a contemporary mainstream displ - DayDayNews

Friends who are familiar with display devices should have noticed that the term "Mini LED" appears frequently on various display devices launched in recent years. Compared with LCD and OLED, Mini LED takes into account the advantages of both. It is a contemporary mainstream displ

How powerful is Mini LED TV? Learn more about TCL’s 2022 new products with the best quality and price ratio

06/27 1319

ASUS should be the brand that launches the largest number of new notebooks in 2022, including Adou, Wushuang, Fearless, Lingyao, Tianxuan, ROG Fantasy, Gunslinger, Ice Blade... Each series has iterative updates.

Born for creation. Top allocation is RMB 30,000! Is ASUS ProArt 16 2022 worth choosing?

06/26 1774

I haven’t written anything for a long time, and recently I thought of writing again as a practice. Recently, I changed the nickname of my headline account to "Meiji Photos". In fact, this has two meanings. First, I like to use the "Meizu" mobile phone to shoot some random scenes. - DayDayNews

I haven’t written anything for a long time, and recently I thought of writing again as a practice. Recently, I changed the nickname of my headline account to "Meiji Photos". In fact, this has two meanings. First, I like to use the "Meizu" mobile phone to shoot some random scenes.

You will encounter difficulties along the way, but you must have a firm goal and keep moving forward.

06/26 1153

The seventh batch of centralized drug procurement organized by the state will produce the proposed winning results in Nanjing, Jiangsu Province on July 12. The official winning results will be released after the public announcement. 60 types of drugs were successfully purchased i - DayDayNews

The seventh batch of centralized drug procurement organized by the state will produce the proposed winning results in Nanjing, Jiangsu Province on July 12. The official winning results will be released after the public announcement. 60 types of drugs were successfully purchased i

It’s coming down again! Average price reduction 48%

06/27 1267

Introduction: It resembles honeysuckle. The fruit is brightly colored and slightly poisonous. Please be careful not to eat it randomly. Be careful of poisoning. The magical nature breeds countless plants, although these plants all have their own shapes and characteristics. But th - DayDayNews

Introduction: It resembles honeysuckle. The fruit is brightly colored and slightly poisonous. Please be careful not to eat it randomly. Be careful of poisoning. The magical nature breeds countless plants, although these plants all have their own shapes and characteristics. But th

It looks exactly like honeysuckle. The fruit is brightly colored and slightly poisonous. Please be careful not to eat it randomly. Be careful of poisoning.

06/27 1098

Cancer, as a malignant tumor disease originating from epithelial cells, is extremely harmful to human health. The occurrence of cancer is always unprepared. Everyone is equal before the disease, whether you are a rich man or a poor person. Ordinary people are likely to suffer fro - DayDayNews

Cancer, as a malignant tumor disease originating from epithelial cells, is extremely harmful to human health. The occurrence of cancer is always unprepared. Everyone is equal before the disease, whether you are a rich man or a poor person. Ordinary people are likely to suffer fro

China's top oncologist suffered from cancer and died painfully one year later. His reflections before his death were thought-provoking.

06/27 1598

For many middle-aged people, they should start to pay attention to physical maintenance after reaching a certain age. Once they feel unwell, they must not be negligent and go to the hospital for a check-up in time to avoid prolonged illness, which may become a serious illness or - DayDayNews

For many middle-aged people, they should start to pay attention to physical maintenance after reaching a certain age. Once they feel unwell, they must not be negligent and go to the hospital for a check-up in time to avoid prolonged illness, which may become a serious illness or

Doctors remind: When you reach the age of 40, try not to "exert yourself" from these five discomforts to stay healthier

06/27 1926

Birth, old age, illness and death are human nature. Everyone will experience it, and everyone must face death when they are born. People eat whole grains, and no one can guarantee that they will not get sick in their lifetime. With the continuous development of medical technology - DayDayNews

Birth, old age, illness and death are human nature. Everyone will experience it, and everyone must face death when they are born. People eat whole grains, and no one can guarantee that they will not get sick in their lifetime. With the continuous development of medical technology

Things about medical staff

06/27 1687

The 1st, 2nd, and 6th columns, which served as the first echelon, broke through the enemy's Yellow River defense line with sudden and brave movements on a wide front of 300 miles from Zhangqiuzhen to Linyingji. - DayDayNews

The 1st, 2nd, and 6th columns, which served as the first echelon, broke through the enemy's Yellow River defense line with sudden and brave movements on a wide front of 300 miles from Zhangqiuzhen to Linyingji.

Founding General Chen Xilian recalled the bloody battle at Yangshan Ji

06/27 1361