Therefore, if a resistor acquires surface films from careless handling or deposits from air contaminants, it should be cleaned with a foam-tipped swab and methanol.

所以，如果由于不当的处理或空气污染物的沉积而在其表面形成薄膜，则应使用浸了甲醇的泡沫签来清洗。

youdao

This paper reviews the influence of air contaminants, i. e., impurities in air stream of cathode, on the performance of proton exchange membrane of fuel cells (PEMFC).

论述了城市空气污染物(即阴极气体杂质)对质子交换膜燃料电池(PEMFC)性能的影响。

youdao

In this paper, the category and harm of indoor air contaminants are described, the theories and advantages and disadvantages of several purification technics are introduced.

概述了室内污染物的种类及危害，介绍了目前几种室内空气净化技术原理及优缺点。

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In March 2003 Tinseltown darling Erin Brockovich filed a mass toxic tort claiming that drilling on the field had created air contaminants that caused a cancer cluster among students, teachers and residents.

FORBES: Wild Frontier

He said that the council had also considered claims from Collins Solicitors "that indoor air testing conducted on their behalf shows levels of airborne contaminants in four homes".

BBC: Tests on Motherwell homes 'rule out' toxic land link