passive iron

基本解释

The presence of nitrate resulted in a positive shift in corrosion potentials, and thus shifted the conditions to favour the formation of a passive oxide film at the iron surface.
在硝酸根离子存在条件下，铁的腐蚀电位相应升高，系统条件也因之发生变化，导致钝性的铁氧化物在铁表面生成。
Inductive iron core is essential to passive power-factor correction circuit(PFC). The selection of inductive material is a key factor which has influence on the performance of PFC.
电感铁芯是PFC电路中不可缺少的器件，电感材料的选择是影响PFC电路性能的关键因素之一。
The presence of exogenous surface contamination, including dirt, grease, free iron from contact with steel tooling, and so forth, may interfere with the formation of the passive film.
外生的表面污染，包括：尘土、油脂、来自钢铁加工的游离铁等等，可以影响到钝化膜的生成。
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