颗粒捕集器是一种安装在柴油发动机排放系统中的陶瓷过滤器，它可以在微粒排放物质进入大气之前将其捕捉。 柴油机颗粒捕集器：DPF（Diesel Particulate Filter），汽油机颗粒捕集器：GPF（Gasoline Particulate Filter）。
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废气通过颗粒捕集器载体时，粒径大于某尺寸的颗粒被滤下并吸附在载体表面上而不直接排出。
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.
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.
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.
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