There is high tantalite grade for certain large scale granite - pegmatite pattern tantalite - columbite mine in our country.我国某大型花岗伟晶岩型铌钽矿含钽品位高居我国钽铌矿山之首.The measurement indicates that the optimized performance can be ach...
From somewhere distant he heard the clatter of a typewriter.他听见从远处什么地方传来打字机的嗒嗒声。I found her a rather austere, distant, somewhat cold person.我发现她相当严厉，拒人于千里之外，近乎冷漠。The rolls of distant thunder were growing more ominous.远处隆...
请确定你是清楚的然后再制样品.Please confirm you are clear and then remake the sample.使用了环氧类湿强剂的湿强废纸存在再制浆困难的问题.The repulping of wet strength waste papers containing epoxy wet strength agents is difficult....
一种想法的雏形the embryo of an idea现代自行车的雏形the prototype of the modern bicycle他的机械计算机是现代电子计算机的雏形.His mechanical calculating engines were the antecedents of the modern computer....