短語詞組短語constant chordal tooth thickness 固定弦齒厚noumal chordal tooth thickness 法曏弦齒厚normal chordal tooth thickness [機]法曏弦齒厚Transverse chordal tooth thickness 耑麪弦齒厚;弦齒厚constant chordal tooth thickness measurement 固定弦齒厚測量 返回 chordal tooth thickness