大多数厂商都使用活性碳收集器.Most manufacturers use a charcoal canister.已经设计出的污染微粒收集器可将大部分有害微粒从废气中分离出来.Particulate traps have been designed that will remove most of the particles from the exhaust gas.用直径30毫米的球形收集器,可以更准确地测定花粉的总量.The to...