| 单词 | spade-wheel |
| 释义 | > as lemmasspade-wheel spade-wheel n. the wheel in a digging machine which carries the spades. ΘΚΠ society > occupation and work > equipment > earth-moving and excavating equipment > [noun] > excavator > part of clam-shell1508 spade-wheel1874 1874 E. H. Knight Amer. Mech. Dict. I. 703/1 In the rotary machine (Fig. 1655) the ground-wheel b drives the spade-wheel L1 through the intervention of gearing. < as lemmas |
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