连接在蒸汽机上的旋转式发动机使轴承转动，机器得以驱动，从而使得利用蒸汽动力纺线和织布的工厂出现。
A rotary engine attached to the steam engine enabled shafts to be turned and machines to be driven, resulting in mills using steam power to spin and weave cotton.
晶体学家们一直认为所以的晶体都具有旋转对称性，这样当它们转动起来时候，从各方面来看都是一样的。
Crystallographers always believed that all crystals have rotational symmetry, so that when they are rotated, they look the same.
另一些观点包括制造一种检测器来试验原子核的旋转动量能否被测量出，或者运用该技术来制造超灵敏的触角。
Other ideas include building a detector to see if the spin of an atomic nucleus can be measured, or using the technique as an ultrasensitive antenna.
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