Since a chief source of pollutants is automobile emissions, it might be expected that pollutant levels could be correlated with automobile traffic, at least to some extent . 因为污染物的主要来源是汽车的排出物,所以可以料想污染物的浓度至少在某种程度上是与汽车运输有关。
Ostomy collection bags - glossary of terms 造口排出物收集袋.术语词汇
The discharge that is characteristic of this inflammation 粘膜液体排出物具有这种炎症特征的排出物
Testing water - aqueous effluents from petroleum refineries - sampling 水的测试.炼油厂含水排出物.取样
Instrumentation and techniques for vehicle refueling emissions measurement 车辆加油排出物测量的技术和测量工具