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Environmental Quality Index
Introduction
Air pollution has become a serious problem in recent years. The pathogenic elements contained in air pollution can not only bring great harm to peoples physical health, but also have an adverse effect on the environment, which has a profound impact on the continuous and healthy devel......
1030 
Sophia
mist fan
Spray Fan
When it comes to cooling down on a hot summer day, many people turn to fans. And for good reason; fans are a cheap, effective way to stay cool, and they work just about anywhere. But if youre looking for something different to stay cool, a great solution is a spray fan. Spray fans use a......
Gas purification equipment
Industrial Gas Purification Equipment
Gas purification is a technology used to treat industrial gases like ammonia, sulfur dioxide, or carbon dioxide to make them safe for use. The equipment used for gas purification is built to industrial safety standards and is designed to remove contaminants f......
accumulator accumulator
The Benefits of an Accumulator
Accumulators, or hot water storage tanks, are becoming increasingly popular in both the commercial and domestic sectors. An accumulator basically stores hot water, ready for usage in centralized domestic hot water systems, or as part of a heating system. So why are ......
ruler
Drugs and Alcohol Abuse
Drugs and alcohol abuse are common issues among adolescents. The growing rate of substance abuse among younger adults has increased significantly over the years and for this reason, parents, teachers, and adults should always be informed about it. Drugs affect the brain an......
heat pump
Introduction
Heat pumps are a popular choice in homes and commercial buildings because they use electricity to deliver up to four times the amount of heat energy compared to traditional heating systems. Heat pumps are economical, efficient and require minimal maintenance. Heat pumps can also be u......
elevator
The History of Elevators
Elevators, commonly known as lifts, have become an integral part of modern life and culture. We take them for granted while they are completely taken us to different floors of the buildings. They are found anywhere where heights come into play, from sheer skyscrapers to ......
Application Status of Virtual Machine Tool Technology (Part Two)
Virtual bed technology is growing more and more popular with the health care industry, as well as in assisted living homes. This technology can provide comfort and safety to older patients, as well as those with physical disabilities. There are several benefits to the use of virtual bed technology......
GBJ74-84 Code for Design of Petroleum Depots (2)
GBJ 74--84 Petroleum Depot Design Standard
This standard is released by the China National Petroleum Corporation (CNPC) and Guangdong Petroleum Administration Bureau on March 1984, and became effective on April 1, 1984. It is devoted to the regulations for the design and construction of petrole......
GB J16-87 Code for fire protection design of buildings (continued)
GBJ 16—87 Building Fire Protection Design Specification (Continued)
1. General Requirements
1.1 The building fire protection design specification should meet the requirements of relevant laws, regulations and standards, and take fire safety as the basic principle.
1.2 The building fire protec......
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