叶蜡石的红外光谱有两种基本振动形式。
There are two basic vibration forms in the infrared spectrum of pyrophyllite.
遵照音乐波动的法则，我们知道基本振动的八度音阶是通过数字2的乘法或除法创造出来的。
According to the rules of music vibration, we know that octaves of the fundamental vibration are created through multiplication or division from the number two.
马克•藏伯格：地震仪的基本模型是一个箱体，箱内装置弹簧，弹簧上悬挂重物，地震来临时，重物在竖直方向上振动。
Mark Zumberge: Basically a seismometer is a box with a spring with a mass hanging inside, and as the ground shakes the mass goes up and down.
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