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不管汽车检测人员如何努力,少量汽车依然会将有害的化学物质排入大气。一种能够准确探测污染物质的新型红外敏感器或许能有助于从烟雾中检查出有害物质。
No matter how hard car inspectors work, a small number of cars can still emit harmful chemicals into the atmosphere. A new type of infrared sensor that accurately detects contaminants may help detect harmful substances from the smoke.