A matrix of this sort occurs, for example, in electric networks when mutual inductance is present.例如, 当电网络中有互感时,就会出现这种阵矩.A capacitor is used to eliminate sparking when a circuit containing inductance is suddenly opened.当...
6月底到8月初，他们群聚在海滩上。They throng the beaches between late June and early August.羊群聚在一起取暖.The sheep herded for warmth.人们像牛一般群聚在一起.Peoplp herded together like cattle....