齿轮类常用英语单词顶隙bottomclearance圆周侧隙circumferentialbacklash法向侧隙normalbacklash径向侧隙radialbacklash锥齿轮bevelgear锥齿轮副bevelgearpair准双曲面齿轮副hypoidgearpair冠轮crowngear端面齿盘contrategear直齿锥齿轮straightbevelgear斜齿锥齿轮helicalbevelgear曲线齿锥齿轮spiralbevelgear弧齿锥齿轮gleasonspiralbevelgear摆线齿锥齿轮overlikonspiralbevelgear零度锥齿轮zerolbevelgear分度圆锥面referencecone分度圆referencecircle分锥顶点referenceconeapex外锥距outerconedistance齿高toothdepth齿顶高addendum齿根高dedendum工作高度workingdepth弦齿高chordalheight齿距pitch齿厚tooththickness弦齿厚chordaltooththickness弦齿高c