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单词 pivot-gearing
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pivot-gearing
pivot-gearing n. Mechanics Obsolete gearing in which the axis of rotation of a driving wheel can be shifted, so that the machine being driven can be positioned at various angles.
ΚΠ
1867 Sci. Amer. 28 Dec. 404/2 Pivot Gearing... I claim the circular bed, A, in combination with the pinion plate, B, and coupling plate, C.
1890 Cent. Dict. Pivot-gearing.
extracted from pivotn.adj.
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