It's like a pendulum which has a length of 115 meters.
就像一个钟摆，长度115米。
One college student tied the pliers to one string and set it in motion like a pendulum.
一位大学生把钳子系到一根绳子上，然后让它像钟摆那样摆动起来。
Like magic out of a Harry Potter novel, such a metal could contract on command, or swing back and forth like a pendulum.
像这种仿佛出自《哈利·波特》小说中的魔法一般的金属可以按照指令收缩，或者像钟摆那样前后摇摆。
Without emotional balance we are like a pendulum hanging and swinging back and forth, not able to find a sturdy or fixed position with which to make decisions.
情绪不平衡的我们就像是前后不停摇摆的钟摆，没办法以坚定的态度做出决定。
The elevator swung like a pendulum.
电梯则象个钟摆一样来回摇动。
Life swings like a pendulum backward and forward between pain and boredom.
人生就像钟摆一样在痛苦与无聊之间摇摆。
Let us again imagine an idealized experiment. A small sphere with an electric charge is forced, by some external influence, to oscillate rapidly and in a rhythmical way, like a pendulum.
我们再来设想一个理想实验，用某种外部影响迫使一个带有电荷的小圆球很快而且有韵律地像钟摆一样振荡起来。
Let us again imagine an idealized experiment. A small sphere with an electric charge is forced, by some external influence, to oscillate rapidly and in a rhythmical way, like a pendulum.
我们再来设想一个理想实验，用某种外部影响迫使一个带有电荷的小圆球很快而且有韵律地像钟摆一样振荡起来。
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