Mining backfilling is restrained by relatively high filling cost.充填采矿由于充填成本较高而制约着其发展.High - water rapid - hardening backfilling with whole tailings is a new developed backfilling technology.全尾砂高水速凝充填技术是一项新近发展起来的充填技术.Its ...
在参加该项目之前必须结清余账。You have to pay your outstanding bill before joining the scheme.在拿吃的之前,用热肥皂水把手好好地洗干净。Wash your hands thoroughly with hot soapy water before handling any food.在1918年再版之前,这本书一直非常罕见。It remained an exceptional...
The cervical smear test is a lifesaver.宫颈涂片检查能够帮上大忙。Relatively few bony structures can be felt in the cervical region.相对来说,颈部的骨性结构不易摸到.The cervical muscles control the movements of the head.颈肌控制着头部的动作....
Aeons ago, there were deserts where there is now fertile land.现在是肥沃土地的地方在很久很久以前曾是一片片沙漠。aeons of geological history数以亿万年计的地质史She recalled her talk with him aeons ago.她回忆起许久以前和他的谈话...