通过为不锈钢表面提供一个氧化环境的化学处理，钝化膜可以得到增强。
The passive film may be augmented by chemical treatments that provide an oxidizing environment for the stainless steel surface.
研究了不同的样品表面处理方法对测定薄板钢样中氧的影响。
The influence of different surface treatment methods on determining oxygen in steel sheet has been studied.
钢的热处理工序包括硬化、回火、退火和表面硬化。
The procedures of heat treatment of steel include hardening tempering annealing and case hardening.
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