英语词汇“pilot drift”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	pilot drift
释义	pilot drift 基本例句导洞 In many projects, like the Simplon, for example, a small pilot tunnel is driven before the full diameter of the tunnel is excavated.在许多隧道工程中，经如辛普龙大隧道，都要在隧道全面开挖前打一个导洞。
随便看	Abodrites Abody a body blow a bodybuilder a body double A body fluid,such as blood,lymph,or bile a body full of deformations A body having the shape of a toroid a body in motion a body invaded by disease A body louse a body of a body of basic laws a body of cold air a body of evidence a body of land a body of law A body of magistrates A body of people selected or conscripted a body of police a body of qualified voters A body of qualified voters a body of soldiers A body of teachers A body of the enemy hung upon their rear