对DNA分子系统的动力学研究表明，DNA分子系统存在双稳势。
The research on DNA dynamics system shows that DNA system has double-stable potential.
如何锻炼：稳坐在一个球上，双照着地，与胯同款。
How to: Sit on a stability ball with feet hip-width apart on the floor.
如何锻炼：稳坐在一个球上，双照着地，与胯同款。
How to: Sit on a stability ball with feet hip-width apart on the floor.
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