working addendum节圆: pitch circle; nodal circle齿顶高: addendum; tooth addendum齿顶高: [机械工程] addendum; tooth addendum [head]◇齿顶高修正 addendum correction [modification]齿顶高，齿顶: addendum节圆齿根高: working dedendum下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:节圆齿顶高，即可在微信中查询翻译
