in·stroke 
(ĭnstrōk′)
(ĭnstrōk′)n.
An inward stroke, especially a piston stroke moving away from the crankshaft.
| 单词 | instroke |
| 释义 | in·stroke (ĭnstrōk′)n. An inward stroke, especially a piston stroke moving away from the crankshaft. |
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