尖齿
head rod (辙尖) 头杆
cradle housing(伞齿切齿机的) 摇台箱
Iherzolite (铬尖晶石) 二辉橄榄岩
Nuhn's glands (舌尖腺) 努恩氏腺
hydathode (在叶脉的尖端) 水孔
real radius (齿轮) 实际半径
minus involute (齿轮的) 负的渐开线
meshing zone (齿轮) 啮合区
preshaving cutter (齿轮) 剃前刀具
cumulative pitch error (齿轮的) 周节累积误差
