e Spindle: a short shaft. It may be slender or tapered, a spindle is capable of rotating or of having a body rotate upon it ●主轴:主轴是一个较短的轴,可能是细长的, 也可能是锥形的,主轴能转动,或者有一物体 绕其转动⚫ Spindle: a short shaft. It may be slender or tapered, a spindle is capable of rotating or of having a body rotate upon it. ⚫ 主轴：主轴是一个较短的轴，可能是细长的， 也可能是锥形的，主轴能转动，或者有一物体 绕其转动