English Dictionary

emissions test

noun

A measurement performed on motor vehicles, required by the DMV, to prevent issuing valid registration if an excessive amount of waste fumes are produced during typical use. Cars typically are placed on a dynamometer to simulate different driving speeds.

I need to take my car for an emissions test.

意味（1）

A measurement performed on motor vehicles, required by the DMV, to prevent issuing valid registration if an excessive amount of waste fumes are produced during typical use. Cars typically are placed on a dynamometer to simulate different driving speeds.