They determined that mobile phones are a " possible carcinogen, " listing use of the devices in the same category as lead, engine exhaust and chloroform, CNN reported.
他们坚信手机是“一种致癌物质”，将其危害等同于铅毒、发动机排气及三氯甲烷。
Mobile vehicle exhaust pollution control and management in Nanjing was discussed.
简述了南京市机动车排气污染控制和管理对策。
Intake and exhaust port are the key parts for the mobile engine.
进、排气道是汽车发动机的关键部件之一。
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