contaminant中文什么意思

n.
沾染物(质)，(使清洁空气等污染的)污染物。

例句与用法

The presence of a large density of contaminant causes anomalous increases in the diode current with increasing reverse bias .
大量沾污也会使二级管电流随反向偏压的增加而呈现反常的增大。
Modification of rinsing techniques by installing cascading or counter-current rinse systems increases the contaminant concentration .
安装了阶梯式装置或对流漂洗装置，可改进漂洗技术，把污染物的浓度提高。
One of the jobs of pcv system is to remove these crankcase contaminants before the rotating crankshaft mixes them with the oil .
PCV系统的作用之一是，在旋转的曲轴把水和液体汽油混合之前，把它们排出曲轴箱。
Many of the determinations used fall into the realm of microanalysis because of the small amounts of contaminants present in the samples .
因为存在于样品中的沾染物含量很少，所以许多测定方法属于微量分析范畴。
Sealed to resist airborne particulate contaminants
密封以阻挡空气中的尘粒侵入