| 1. | The role of dopants and contaminants in degradation cannot be ignored .
杂质和污染对退化的作用不能忽视。
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| 2. | Most of the micronutrients will be found as contaminants in other fertilizers .
大多数微量养分，经常是肥料的污染物。
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| 3. | The gas contains blow-by, sludge, acids, oil, and other contaminant .
这些气体包括窜缸气体，沉积物，酸，机油和其它杂质的气体。
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| 4. | Also, it helps to prevent dust and other airborne contaminants from flowing into the room .
它还有助于阻止尘埃和空气所带的其它污染物进入室内。
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| 5. | Ventilation is concerned with the supply of fresh air, the removal of contaminants and heat .
通风涉及的是新鲜空气的供应，污染物和热量的排除。
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| 6. | 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。
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| 7. | 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。
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| 8. | 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。
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| 9. | 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。
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| 10. | Sealed to resist airborne particulate contaminants
密封以阻挡空气中的尘粒侵入
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