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单词 pulley box
释义

pulley box

noun
1= pulley block.
2 Weaving (in a drawloom) a frame containing the pulleys used to adjust the vertical looped strings (now chiefly historical ).
3A broad pulley wheel in the form of a drum or cylinder (rare ).

Origin

Early 19th century; earliest use found in Peter Nicholson (1765–1844), architectural writer and mathematician.

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更新时间:2024/9/20 14:53:06