高精度专用冠齿轮牙齿。
球齿轮是在其球冠面上分布着一道道环形齿的一种新型齿轮。
The spherical gear is a new type of gear formed by attributing ring teeth on a spherical face.
球齿轮是在其球冠面上分布着一道道环形齿的新型齿轮。
Ball gear is distributinging to together on face of its ball coronal the new-style gear of annular tine.
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