| 单词 | bed piece |
| 释义 | > as lemmasbed piece bed piece n. Mechanics the foundation or support of any mechanical structure. ΚΠ 1832 Jrnl. Franklin Instit. June 392 The punching part consists of a punch fixed in the upper shear, just in front of the cutters, with a bed piece upon the bench below it. < as lemmas |
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