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大家在查： private enterprises 准备妥当乙酰胆碱咋样捷豹 slovenly 脆皮 naturally develop 卡德沃 OpenLaszlo

扳把

扳把

扳把

1

A ratchet wheel with a handle is sheathed on the core bar , and a screw can be easily screwed down or unscrewed by both hands .

在芯杆上套上一个带有扳把的棘轮，双手并用，就可以较轻松地拧紧或卸下螺丝。

2

left rotating fans , plate from the pull down on the whole are close to wide-open direction .

对左旋转风机，扳把从上往下拉是全闭到全开方向。

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