back tooth

1. Since a back tooth is bad, it became swollen.
   后牙齿坏了，肿了起来。
2. 'No thank you,' said the Manager, standing, perhaps from the force of winter habit, with his back against the chimney-piece, and looking down upon the Captain with an eye in every tooth and gum.
   不，谢谢您，经理说道；也许是由于冬天养成的习惯，他还继续站着；他的背靠着壁炉架，并往下望着船长，好像他每个牙齿和牙床中都长着一只眼睛似的。
3. This paper uses the Finite difference method to study the responding temperature value of the tooth back when the tooth is quenched by laser and gives the relation charts of temperature value with laser parameters and gear parameters.
   针对齿轮激光表面淬火背面回火现象，采用有限差分法分析研究了背面温度响应值，并给出了温度响应值与激光工艺参数、齿轮参数的关系线图。
4. When designing gear hob, worm gear hob and shaping milling cutter, it should be verified whether the interfere would occur between grinding wheel and the next gear tooth on condition of pledging the relief grinding length of the back of tooth.
   在设计齿轮滚刀、蜗轮滚刀和成形铣刀时，要校验在保证齿背铲磨长度的情况下，所用砂轮是否和下一个齿发生干涉。
5. The result shows the seal element can hold back the leakage through axial clearance and reduce friction power loss between scroll tooth and bottom of scrolls.
   结果表明：密封条不但可以阻止通过轴向间隙的泄漏，而且降低了涡旋齿与涡盘底部摩擦功率损失。

noun

1. a tooth situated at the back of the mouth

   Synonym:    posterior