这些钢用来做那些耐高温，耐腐蚀性空气的工具。
These steels are used for tools which must resist high temperatures and corrosive atmospheres.
适用于抽除空气及其它无可凝性及无腐蚀性的气体，广泛应用于需要大抽速和高真空的各种真这系统中。
In addition to pumping air and no condensate and other non-corrosive gases, widely used in pumping speed and the need for high vacuum of truth in this system.
目的：观察新药菌毒清对室内空气及手术器械等的熏蒸消毒效果，检测该药对金属物品的腐蚀性。
The effect of disinfection was judged by the bacteria examination on the cloth, and the metallic causticity was assessed by rusty stain and change of weight.
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