荡秋千,是熟知的机械共振的例子.A common example of mechanical resonance is provided by pushing a swing.调谐收音机或电视接收机是电共振的例子.Tuning a radio or television receiver is an example of electrical resonance.地球上 非 共振的灵魂来自何方?Where do the non - re...
放大倍数为实物大小的833,333倍。The magnification is 833,333 times the original size.八是四的倍数.The number 8 is a multiple of 4.他们的数制源自古巴比伦人，以数字6的倍数为基数。Their numerical system, derived from the Babylonians, was based on multiples of the n...