Desmodromic valve
- 连控轨道阀（连控轨道阀是一种利用凸轮和杠杆系统来控制阀门的开闭的阀门装置，不依靠弹簧作用。在内燃机中，它控制空气入圆筒和排空废气。desmodromic一词表示非常规的机械装置，源于希腊语的词根desmos和dromos）
Desmodromic valve
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abstract:
A desmodromic valve is a reciprocating engine valve that is positively closed by a cam and leverage system, rather than by a more conventional spring.
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WordNet