| 单词 | valve stem |
| 释义 | > as lemmasvalve stem valve stem n. ΚΠ 1888 Lockwood's Dict. Mech. Engin. 397 Valve stem, a valve spindle or rod. 1889 J. M. Whitham Steam-engine Design iv. 98 If the valve..is long, the weight, friction, and diameter of the valve~stem are increased. 1970 K. Ball Fiat 600, 600D Autobook i. 13/1 Valve stems, once bent, cannot be straightened satisfactorily. < as lemmas |
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