exhaust method of sampling pocket [环境] 排气取样袋法
exhaust method of direct sampling [环境] 排气直接取样法
smoke exhaust method 排烟方式
exhaust cooling method 排气冷却法
exhaust-recirculation method 排气循环法
method of air-exhaust 排风方式
method of exhaust by-pass 排气旁通方法
·2,447,543篇论文数据，部分数据来源于NoteExpress
Because hydrogen can clean the exhaust right from a cold engine start, the plasma reformer method is 20% to 50% more efficient at reducing NOx than other clean-diesel technologies, allowing less unburned fuel to pass through in the process.
FORBES: Clearing the Air
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