trough valley

基本解釋

There is a valley between two mountains and there is a trough between two waves.
兩山之間有一谷，西波之間有一伏。
David Corbitt, president of the railroad, said there was no way a car could get down into the deep valley, locally known as the Trough.
鐵路公司的董事長(zhǎng)大衛(wèi)·科比特說(shuō)，汽車是不可能去到河谷谷底的，谷底深處被當(dāng)?shù)厝朔Q之為“大溝槽”。
In combination with exploration and development of gas field, the methods of distinguishing ancient valley trough is proposed after analysis of forming condition of ancient valley trough.
本文結(jié)合氣田勘探開(kāi)發(fā)實(shí)踐，分析了古溝槽形成條件，提出了古溝槽判識(shí)方法。