Chap 5.3 Gear tooth nomenclature (1) 齿宽 Space Width齿槽宽 Addendum Face Circle Width. Circ ular齿厚 Thickness 齿顶高 Addendum Face Flank Fillet 顶隙 Clearance Pitch Circle Root circle Dedendum Dedendum circle 齿根高Chap.5.3 Gear tooth nomenclature(1) Dedendum circle 顶隙 齿槽宽 齿厚 齿宽 齿顶高 齿根高