本课程涵盖了一般工业粗节圆柱蜗杆和喉形齿轮的设计，这些蜗杆和喉形齿轮与轴成90度角，轴向节距为3/16英寸及以上。

Covers the design of general industrial coarse-pitch cylindrical worms and throated gears mounted with axes at a 90 degree angle and having axial pitches of 3/16 inch and larger.