他们发掘出一座埋在地下的古城.They excavated an ancient buried city.化石搜集者们发掘出了一具大象骨骼，据信距今已有50万年。Fossil hunters have unearthed the bones of an elephant believed to be 500,000 years old.在古埃及的古陵墓中发掘出很多东西.Many things left by the ancient Eg...
它的喷嘴抹了某种润滑油。Its nozzle was smeared with some kind of lubricant.将火柴放在煤气喷嘴上点燃煤气.Put a match to the jet to light the gas.她掉转喷嘴,让水花集中喷入小河.She turned the nozzle and the spray concentrated down to a stream....
本文叙述了陶瓷泥浆成形用五水偏硅酸钠制造工艺和影响因素,简要介绍了其在陶瓷行业中的应用.This paper describes the preparation technology and influential factors to Metasilicate pentahydrate for ceramic slip casting.在五水四氯化锡存在下,由氯乙酸和正丁醇合成氯乙酸正丁酯.Synthesis of n - butyl...
You can buy a formulation containing royal jelly, pollen and vitamin C.可以买一种含蜂王浆、花粉和维生素C的配方产品。Howe carefully cultivated Daniel C. Roper, the Assistant Postmaster General.豪谨慎地和邮政副部长丹尼尔·C.罗珀拉近关系。He was put on a high dosage...