扑灭大火仍需采用传统方法，但振荡电场可以用于熄灭小型火势。
Extinguishing big fires still requires conventional methods, but oscillating electrical fields have snuffed out smaller fires.
所以你可以,在飞船里用弹簧测量,物体质量，让它振荡,如果你知道弹簧常数，这也是实际操作中,所用的方法。
So you can actually measure the mass of an object using a spring on the shuttle and let it oscillate if you know the spring constant, and that's the way it's actually done.
提出了电力系统混沌振荡自适应控制的一种方法。
An adaptive control method for chaos oscillation in power system is put forward in this paper.
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