helicoid
adj. 螺旋状的；回转式的；蜗牛壳状的
n. 螺旋面；螺旋体
例句
The shape of the tooth is an involute helicoid.
形状的牙齿是一个渐开线。
Adopt the helicoid transporting charging platform, and reduce the labor intensity.
机采用回转式输送料台，降低劳动强度。
The surface obtained when every point on the edge generates an involute is called an involute helicoid.
那表面获得当每一点在那之上边缘产生一纷乱的是呼叫一纷乱的螺旋状的。
