1) Folded perforation
折齿
2) To Break the teeth and rib
折齿折胁
3) eguivalent number of teeth
折算齿数
1.
The fitting and indexing method on pitch curve;eguations for calca-lating the eguivalent number of teeth,and the processing method for the teeth and fillet curves.
详细介绍了对节曲线的拟合及其在上分齿的方法,以及折算齿数的求取及对齿形曲线、齿根过渡曲线的处理方法。
4) dental fracture
齿突骨折
1.
A medline search of anatomic、injury mechanism、clinical classification、diagnosis as well as treatment with respect to dental fracture of C2.
复习枢椎齿突的解剖特点、齿突骨折的损伤机制、临床分型、诊断和治疗方面的相关文献。
5) breaking off gear teeth
齿轮折断
6) Fold Line Profile
折线齿廓
补充资料：牛折齿
1.喻过分溺爱子女。典出《左传．哀公六年》:"鲍子曰:'女忘君之为孺子牛而折其齿乎?而背之也!'"杜预注:"孺子，荼也。景公尝衔绳为牛，使荼牵之，荼顿地，故折其齿。"
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条