| 单词 | pulley wheel |
| 释义 | Definition of pulley wheel in English:pulley wheelnoun
OriginMid 17th century; earliest use found in Robert Hooke (1635–1703), natural philosopher. Definition of pulley wheel in US English:pulley wheelnoun
OriginMid 17th century; earliest use found in Robert Hooke (1635–1703), natural philosopher. |
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