单词 | pulley box |
释义 | pulley boxnoun 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 ). OriginEarly 19th century; earliest use found in Peter Nicholson (1765–1844), architectural writer and mathematician. |
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