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1·Tooth face equation of producing gear is derived based on spatial meshing theory and coordinate relation.

根据空间啮合原理以及坐标关系推导被加工左右旋齿轮的齿面方程；

2·The active design technique of hypoid gear tooth face provides a kind of fresh method of the hypoid gear design.

准双曲面齿轮齿面主动设计技术为准双曲面齿轮副的设计提供了一种全新的思路。

3·The high al, Zn base alloy conical gear with straight tooth in squeezing casting can ensure an accuracy of tooth face.

利用挤压铸造技术生产高铝锌基合金直齿圆锥齿轮，齿面精度能够得到保证。

4·The distribution of engaging efficiency, EHD oil film thickness and tooth face wear and their changes along with transmission parameters are presented.

给出了超环面行星蜗杆传动啮合效率、齿面磨损量和弹流油膜厚度的分布规律及其随传动参数的变化规律。

5·Gear tooth face serious wear new gear should be changed, if only gear at both ends of the plane wear, can be in surface grinding machine on grinding repair light.

齿轮齿面严重磨损时应更换新齿轮，如果只是齿轮的两端平面磨损，可在平面磨床上磨削修光。

6·The common gear tooth profile curve launches after neighborhood higher order step taylor's series, can discover the tooth face meshing point neighborhood gap is 2 step infinitely greats.

一般齿轮齿形曲线在一点邻域的高阶阶戴劳级数展开后，会发现齿面啮合点邻域间隙为2阶无穷小。

7·He scratched crosses with his serpent's tooth on Mr. Luna's face, arms, chest, and abdomen.

他用蛇牙在 Luna 先生的脸上、胳膊上、胸部和腹部划了十字。

8·Several studies have found that smokers do not heal as well after surgeries such as face-lifts, tooth extractions, and periodontal procedures.

多项研究发现烟民在拉皮、拔牙和牙周手术等外科手术后恢复不如人意。

9·Her face was(all) puffed up with the infection in her tooth .

她的牙齿发炎，使得她整个脸都肿胀起来了。

10·His face was swollen (up) with tooth ache.

他的脸因牙痛而肿了起来。