compression release中文什么意思

卸压

• compression:    n. 1.压缩；压紧；浓缩，紧缩。 ...
• release:    vt. 1.放(箭等)，投(炸弹)； ...
• compression release cock:    减压旋塞

例句与用法

1. Compression release cam design of engine retarder
   发动机缓速器减压凸轮的设计

百科释义

A compression release mechanism works to ease the starting of internal combustion engines by allowing them to spin up to starting speed without having to work against the pumping action of the pistons. It does this through a release valve that is incorporated within the cylinder head that vents the cylinder pressure to the outside atmosphere until the engine has sufficient momentum to overcome it.