In this paper, a new type of conical envelope worm indexing cam mechanism with rolling teeth is proposed.
提出了一种具有滚动齿的新型锥面包络蜗杆分度凸轮机构；
The ideal rock sample is the conical surface rock sample that can joint crest of teeth in single row drilling experiment.
在单齿圈破岩试验中，理想的岩样是与牙齿齿顶线相贴合的锥面岩样。
The ideal rock sample is the conical surface rock sample that can joint crest of teeth in single row drilling experiment.
在单齿圈破岩试验中，理想的岩样是与牙齿齿顶线相贴合的锥面岩样。
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