| 单词 | sleeve valve |
| 释义 | sleeve valve in British Englishnoun (in an internal-combustion engine) a valve in the form of a thin steel sleeve fitted between the cylinder and piston and having a reciprocating and rotary oscillation movement sleeve valve in American Englishnoun an intake or exhaust valve for an engine, consisting of one or more sleeves reciprocating within a cylinder,so that ports in the cylinder and in the sleeves are opposed at regular intervals to open the valve Word origin [1910–15]This word is first recorded in the period 1910–15. Other words that entered Englishat around the same time include: blackout, carbon cycle, grass roots, payoff, radio |
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