| 单词 | rockshaft |
| 释义 | rockshaft in British English (ˈrɒkˌʃɑːft) noun a shaft that rotates backwards and forwards rather than continuously, esp one used in the valve gear of a steam engine rockshaft in American English (ˈrɑkˌʃæft; ˈrɑkˌʃɑft) noun a machine shaft designed to rock back and forth on its journals rather than to revolve |
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