| 单词 | troll-plate |
| 释义 | > as lemmastroll-plate troll-plate n. (see quot.). ΚΠ 1877 E. H. Knight Pract. Dict. Mech. Troll-plate (Machinery), a rotating disk employed to effect the simultaneous convergence or divergence of a number of objects; such as screw-dies in a stock, or the jaws of a universal chuck. < as lemmas |
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