flat belt drive pulleys diameters的意思|示意
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扁带驱动皮带轮直径
flat belt drive pulleys diameters的网络常见释义
带轮直径尺寸 ... 柱内径 column internal diameter 带轮直径尺寸 flat belt drive pulleys diameters 绝对孔径尺寸 absolute pore size ...