adj.螺旋状的;螺线;
例句:
In reality, helical springs symmetric pitch near both ends.
实际上弹簧两端螺旋角逐渐变小.
Helical gears are used to transmit motion between parallel shafts.
螺线齿轮被用于传送在平行的轴之间的行动.
The technology of pulling forming method of helical vane is introduced.
介绍螺旋叶片拉伸成形工艺方法.