When exhaust gas passes through DPF, particle of a size bigger than a certain value will be filtered and adsorbed on the surface of the substrates instead of being directly discharged.
2
并对色谱分离条件、样品净化方式、目标化合物在气相和颗粒物上的分布规律及采样器的捕集效率进行了实验。
Moreover, the chromatography separate condition, sample clean-up, the distributes regulation of target compounds in gas and particles, and the trap efficiency of sampling instrument is also studied.
3
钢丝纤维捕集器是一种简单、有效的柴油机尾气颗粒排放收集装置。
The steel wire trap is a kind of simple and effective collection device for diesel engine particulate emission.