[机] 蜗形弹簧, 发条

词型变化：名词复数形式 : spiral springs

spiral spring的用法和样例：

例句

The coil,or helical,spring consists of a wire or rod wound into a helix and is primarily intended for axial direct compression or tension loads.卷簧，或者说螺旋形弹簧包括一条盘成螺旋形的金属丝盘条，它起初是用于轴向直接压力和拉伸。

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