相关词条
+ore precipice
1 . 矿山岩
ore precipice nature slope stability mainly divisional plane control , the slope destruction mainly is the wedge-shaped body jitter which forms by divisional plane cutting creates .矿山岩质边坡的稳定性主要受节理面控制,边坡的破坏主要是由节理面切割形成的楔形体失稳造成的。
+at precipice
1 . 在悬崖边上
Our security , our future stands at precipice ., 我们的安全和未来处在悬崖边上.
+sheer precipices
1 . 峻峭的悬崖
sometimes they are forced to skirt the concrete machine gun emplacements of iranian border guards , at others they have to wade across freezing mountain streams or negotiate sheer precipices .有时,他们被迫绕过伊朗边防军的混凝土机枪阵地,有时,他们不得不趟过寒冷的山涧溪流或绕过峻峭的悬崖。
+this precipice
1 . 这悬崖
a slight carelessness on this precipice could cost a man his life .在这悬崖上稍一疏忽,就会使人丧生。