常見例句雙語例句This phenomenon occurs when the effect of strong volcanic activities begin to weaken and the equatorial trough fills up and retreats southwards.這種現(xiàn)象發(fā)生在強(qiáng)火山活動(dòng)影響開始減弱，赤道槽南移填塞以后。The depths of the trough and the deeper peaks are almost coincident with those of the south boundaries of the South Equatorial Current and the Equatorial Undercurrent, respectively.流速矢量旋轉(zhuǎn)譜水平隨深度的變化呈馬鞍形，低谷及深處的峰所在深度分別與南赤道流及赤道潛流的南邊界所在深度大體一致。 返回 equatorial trough