| 单词 | Woodruff key |
| 释义 | Woodruff key /wŭdˈruf kē/ (engineering)nounA key consisting of a segment of a disk, restrained in a shaft key-way milled by a cutter of the same radius, and fitting a normal key-way in the hub ORIGIN: From the Woodruff Manufacturing Company of Hartford, Connecticut, where it was first manufactured in 1892 |
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