casa1363007
1、挖掘机的英语:excavating machinery,英 [ˈekskəveɪtɪŋ məˈʃiːnəri] 美 [ˈekskəveɪtɪŋ məˈʃiːnəri]。 2、这些工人在操作隧道挖掘机时被大量的落石困住了。A massive rock fall trapped the men as they operated a tunnelling machine。 3、莎拉向Trade Me和挖掘机卖家作出了解释。Sarah explained the error to Trade Me and the seller。
等开到荼蘼
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]
优质英语培训问答知识库