| 单词 | drillstock | 
| 释义 | drillstock in British English (ˈdrɪlˌstɒk) noun the part of a machine tool that holds the shank of a drill or bit; chuck drillstock in American English (ˈdrɪlˌstɑk)  noun  that part of a drilling machine or tool which holds the shank of a drill or bit;chuck | 
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