1) shielding gas
保护气
1.
The effect of shielding gas type on laser weldability of galvanized steel;
保护气体种类对镀锌板激光焊接性的影响
2) nitrogen protection
氮气保护
1.
Nitrogen Protection's Effect on Solder Joint Appearance in Lead-free Reflow Soldering;
氮气保护对无铅再流焊焊点外观质量的影响
2.
Nitrogen protection can improves wettability of lead-free solder and solder joint quality.
无铅钎料差的润湿性给传统电子组装工艺带来了巨大的挑战,氮气保护有利于改善无铅钎料的润湿性,提高焊点质量。
3.
Based on this, a combination nozzle with high pressure water-atomizing and low pressure nitrogen protection functions is designed to manufacture spherical or quasi-spherical stainless steel powders.
从国内外研究水雾化制粉的现状入手 ,在综合国内外研究资料的基础上 ,为实现高压水雾化制取不锈钢球形或类球形粉末 ,设计了一种高压水雾化、低压氮气保护的组合雾化喷嘴。
3) argon shield
氩气保护
1.
A self-made vacuum melting and argon shield continuous unidirectional solidification equipment was used to produce copper tube with continuous columnar structure.
采用自行研制的真空熔炼、氩气保护连续定向凝固设备制备出具有连续柱状晶组织的铜管铸坯,分析了铜管铸坯生产中熔体温度、连铸速度、冷却水量,结晶器等对其的影响。
2.
Continuous unidirectional solidification equipment under conditions of vacuum melting and argon shield is designed and made on the basis of original traditional continuous unidirectional solidification equipment and vacuum system.
真空熔化氩气保护连续定向凝固设备,是在原有的常规连续定向凝固设备的基础上,加上真空系统而设计制造出来的。
4) electric protection
电气保护
1.
On electric protection and grounding problem of intelligent building
智能楼宇电气保护与接地问题探讨
2.
According to the present situation of coal mine electric protection,how to detect various physical phenomenon of electric and realize complete options of coal mine electric is probed.
分析了煤矿电气保护现状,探讨了如何通过检测不同的电气物理量,来实现煤矿电气保护的完全选择性,保证安全用电和连续生产。
3.
There are many hidden perils of the accidents using electrical equipments underground coal mine well,in which electric protection cannot give full scope to be the serious.
安全对于煤矿生产至关重要,煤矿井下电气设备的使用存在很多安全隐患,其中最为严重的是电气设备的保护功能不能发挥作用,分析了电气保护不完善的原因,提出了解决的措施。
5) climate protection
气候保护
1.
Economic effect analysis of climate protection policy based on increasing carbon sink.;
增汇型气候保护的经济影响模拟分析
2.
This paper supplements the literature about the effects of reducing carbon dioxide emission in an attempt to simulate the international GDP spillovers as a result of climate protection policy.
基于气候保护模型(State-contingent模型与Demeter模型)和GDP溢出模型(Mundell-Fleming模型),对中美两国在实施控制性气候保护措施之后所导致的GDP溢出影响的变化进行了模拟分析。
3.
Two macro model systems were adopted,which are the decision support system of climate protection in China and the Computable General Equilibrium(CGE) model of Chinese economy.
系统地给出了中国实施增汇型CO2减排政策对宏观经济影响的模拟结果,所采用的模拟系统包括基于Pizer,Demeter,Zwaan工作发展的中国气候保护决策支持系统和中国经济可计算一般均衡(CGE)系统。
补充资料：保护气体
分子式：
CAS号：
性质：是电子用特种气体中的一类。高纯Ar，He，H2常用作晶体生长时的保护气体。其他工业如化学工业和金属加工所用的惰性保护气体纯度上要求可低些。
CAS号：
性质：是电子用特种气体中的一类。高纯Ar，He，H2常用作晶体生长时的保护气体。其他工业如化学工业和金属加工所用的惰性保护气体纯度上要求可低些。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条