Each phase angle , whether positive or negative, is referenced to the horizontal.
每个相角不论是正的还是负的，都是相对于水平轴来说的。
Design and cutting condition of carbide hob with radial negative front Angle were discussed.
论述了径向负前角硬质合金滚刀的设计及切削条件。
Design and cutting condition of carbide hob with radial negative front Angle were discussed.
论述了径向负前角硬质合金滚刀的设计及切削条件。
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