| 单词 | suspension-drill |
| 释义 | > as lemmassuspension-drill suspension-drill n. ΚΠ 1875 E. H. Knight Amer. Mech. Dict. III. 2464/1 Suspension-drill,..a vertical drilling-machine having a frame which may be bolted to the ceiling, so as to be out of the way. < as lemmas |
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