1) nitrogen-conserving
保氮
2) maintenance of nitrogen
氮保存;氮的保存
3) 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。
4) N2 protection
氮气保护
1.
By analyzing the feasibility of adopting N2 protection de- stress annealing heat- treatment process on interior shell of vacuum powder adiabatic liquid CO2 tank (without manhole) and actually applying, this article successfully solved the gas oxidation prevention of low alloy steel vessel' s interface.
通过对真空粉末绝热液态CO2贮罐(不开设人孔)内胆采用氮气保护去应力退火热处理工艺的可行性分析和实际应用,成功地解决了不开设人孔低合金钢容器内表面的防气体的防氧化问题,对该类产品的热处理工艺具有指导作用。
5) N 2-H 2 protection
氮氢保护
6) Solid-nitrogen protected
固氮保护
补充资料：保保
1.对儿子的爱称。 2.泛用为对儿童的爱称。
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