drill·stock 
(drĭlstŏk′)
(drĭlstŏk′)n.
The part of a drilling tool or machine that holds the shank of a drill or bit.
| 单词 | drillstock |
| 释义 | drill·stock (drĭlstŏk′)n. The part of a drilling tool or machine that holds the shank of a drill or bit. |
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