Search results for keyword: ecological
Coal Gangue Comprehensive Utilization Technology
Integrated Utilization of Coal Gangue
Background
In modern energy development and industrial production, energy is an important material basis, and coal is an important energy source. Coal burning and other smelting processes during industrial production will inevitably produce solid residues— ......
1075 
Avery
On the Necessity and Feasibility of Green Cutting Fluid
Introduction
Green Machining is an important manufacturing practice that is being increasingly adopted by both the public and private sectors worldwide. It is employing a variety of sustainable cutting and manufacturing technologies to reduce energy consumption, reduce waste and emissions, and inc......
GB 13223-1996 Emission Standard of Air Pollutants for Thermal Power Plants
Atmospheric Pollution Standards for Thermal Power Plants GB 13223-1996
Thermal power plants generate electricity through the burning of coal and the burning of the coal releases pollutants into the atmosphere. China enacted the Atmospheric Pollution Standards for Thermal Power Plants GB 13223-199......
GB 3838-88 Surface Water Environmental Quality Standard
GB 3838-88 Groundwater Environment Quality Standard
Introduction
The quality of groundwater is important for human activities, environment protection and ecological security. To ensure the quality of groundwater, the Environmental Protection Agency of China (EPA) established the Groundwater Env......
Comparison table of commonly used steel grades at home and abroad (6)
Steel grade equivalents table
Country USA UK Germany France Italy Spain Sweden Japan
AISI/SAE Werkstoff DIN AFNOR UNI UNE JIS
1018 1.0453 C10/C15 22Mn6/C22C10 1449/08 070M20/070A22 1020 CK22/C22 050A20/C20
1022 1.0619 S22C S15CK/C15CK S20C 080M15/080A15
1030 1.1133 C25/C30 25Mn4/C25C10 1449/0......
S235J2G3 use
S235J2G3 is a low carbon structural steel material which is commonly used in the construction industry. It is a hot-rolled steel made of mild steel and is mainly used for structural applications.
S235J2G3 is a low carbon structural steel material with a carbon content of 0.2 percent. It is also c......
United Nations Environment Program
United Nations Environment Programme (UNEP)
The United Nations Environment Programme (UNEP) is a specialised agency of the United Nations (UN) dedicated to environmental protection and stewardship. It was established in 1972 to promote international environmental cooperation, and it strengthens s......
Common car dictionary E
Cars are some of the most amazing machines every created by human hands. They’re powerful, versatile, and often incredibly stylish. Cars are what give us the ability to go where we want, when we want. While the basics of cars remain the same, there are numerous terms used to describe and discuss ......
underground building
Introduction
Underground construction can provide a large number of benefits over traditional aboveground construction, such as reduced noise, aesthetic enhancements and thermal insulation. As construction costs and materials become increasingly expensive, the advantages of underground constructi......
Huaibei Mining Bureau Luling Coal Mine
HuaiBei Mine Bureau Longfeng Coal Mine
HuaiBei Mine Bureau Longfeng Coal Mine is located in northern Anhui province of China.It is situated in the southwest of Fuyang City with a total area of 219.68 hectares.The mine has broken down the traditional mode of coal mining,created the resources and e......
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