常見例句雙語例句There is no common normal in the conical involute gear and the fixed chordal tooth thickness can not be measured accurately because of the coexistence of helix angle and taper.漸開線錐形齒輪由于同時存在錐度和螺旋角,使得其固定弦齒厚無法精確測量,也沒有公法線。 返回 conical involute gear