Search results for keyword: scientific
Malleable Iron Castings (Abstract) GB 9440-88
GB 9440-88 is a national standard issued by the Ministry of Industry and Information Technology of the Peoples Republic of China. It specifies technical requirements, test methods and inspection rules, conditions of supply and acceptance, and packaging, marking and quality certificate of cast iron......
1044 
Sophia
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......
GB/T 13201--91 Technical Method for Establishing Local Air Pollutant Emission Standards
GB/T 13201--91 Technical Method for Establishing Local Atmospheric Pollutant Emission Standards
This paper focuses on the technical method formulated in the standard of GB/T 13201--91, designed to establish local atmospheric pollutant emission standards. This standard specifies the steps and proc......
Sintered NdFeB permanent magnet material (ZB/H58003-1990)
Introduction
The sintered Nd-Fe-B magnets, also known as Neodymium or NdFeB magnets, are permanent magnets made of a range of materials, namely an alloy of rare-earth elements neodymium (Nd) and iron (Fe), along with the addition of some boron (B). The powerful magnetic properties of these magnet......
Alloy structural steel (GB 3077-88) (4)
The development process of alloy structural steel (GB 3077-88)
Alloy structural steel is one of the important structural materials in engineering and plays an important role in the development of Chinas steel industry. In 1988, an alloy structural steel variety was added, and it was also the basi......
45CrNiMoV use
百度知道无法提供作业答案，以下是相关介绍，供参考： 45CrNiMoV is a kind of high-alloy steel material which is mainly used in high-strength and high-temperature situations and has good mechanical properties such as thermo-plasticity, hardness, high strength and durability. The raw material of 45CrNiM......
60 uses
Medical advances since the 1950s
Since the 1950s medical advances have been made that have revolutionized healthcare and substantially improved the quality of many lives. These advances have primarily focused on three areas: vaccines, diagnostic techniques and drug treatments.
Vaccines
The develo......
The main characteristics and uses of austenitic stainless steel S31668 0Cr18Ni12Mo2Ti
316/316L Stainless Steel
GENERAL PROPERTIES
Type 316L is an extra-low carbon variation of Type 316 that eliminates harmful carbide precipitation due to welding.
Type 316L (UNS S31603) is the low carbon version of Type 316 and is immune from sensitization (grain boundary carbide precipitation). ......
C50E use
Introduction
C50E, the latest member of the HPC line of computers, has been making headlines in the industry. This machine has been designed with the latest in hardware and software technology, making it one of the most powerful HPC computers available. This article will provide an overview of th......
C60W use
C60W Usage
C60W is an innovative type of Carbon-60 (C60) that is being used in a variety of applications, ranging from medical to military to industrial. C60W is often referred to as fullerene, buckyball, buckminsterfullerene or a host of other names, but whatever the moniker, the application is ......
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