挖掘英语

excavator 英 [ˈekskəveɪtə(r)] 美 [ˈɛkskəˌvetɚ] n. 挖掘机;开凿者，发掘者可以参考维基百科：Excavators (hydraulic) are heavy construction equipment consisting of a boom, dipper (or stick), bucket and cab on a rotating platform known as the "house".[1] The house sits atop an undercarriage with tracks or wheels. They are a natural progression from the steam shovels and often mistakenly called power shovels. All movement and functions of a hydraulic excavator are accomplished through the use of hydraulic fluid, with hydraulic cylinders and hydraulic motors.[2] Due to the linear actuation of hydraulic cylinders, their mode of operation is fundamentally different from cable-operated excavators which use winches and steel ropes to accomplish the movements.[3]

dug英 [dʌg] 美 [dʌɡ] v.挖，掘( dig的过去式和过去分词 );（如用铲、锨或推土机等）挖掘;挖得;寻找例句：He dug the ground with a spade. 他用锹挖地。

挖掘机 [机] excvavtor excavating machinery 挖掘机，又称挖掘机械（excavating machinery)，是用铲斗挖掘高于或低于承机面的物料，并装入运输车辆或卸至堆料场的土方机械。