| 单词 | pulley shell |
| 释义 | > as lemmaspulley shell pulley shell n. rare the outer part of a pulley block. ΚΠ 1890 Cent. Dict. Pulley-shell, the outer part or casing of a pulley-block. 1916 Middleton (N.Y.) Daily Times 28 Apr. 7/5 In going down the rope slips through the pulley shell held by the user and revolves the wheel inside. < as lemmas |
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