lewisson
'lju:isәn
基本解释
n. (=lewis)[机]吊楔, 鸠尾起重机
英文释义
n. An iron dovetailed tenon, made in sections, which can be
fitted into a dovetail mortise; -- used in hoisting large stones, etc.
n. A kind of shears used in cropping woolen cloth.
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