金矿的主要载金矿物分别为:毒砂 、 磁黄铁矿 、 黄铁矿 、 方铅矿和闪锌矿.The main gold bearing minerals include arsenopyrite, pyrrhotine, pyrite, galena and sphalerite.与黄药相比,乙硫氮是方铅矿更好的选择性捕收剂.Diethyldithiocarbamate was more better selective collector than...
The still use traditional dugout canoes for traversing the fresh water lake.仍然使用的淡水湖泊穿越传统的防空洞独木舟.See him coming from the dugout to warm up.您看他从地下室里出来了,开始做准备动作.A canoe made by hollowing out a tree trunk; a dugout.独木舟将树干中心...
We have not bound your feet with our entreating arms.我们不曾用恳求的手臂来抱住你的双足.The evening has come. Weariness clings round me like the arms of entreating love.夜来到了, 困乏像爱的恳求用双臂围抱住我....
Gunpowder is composed of sulfur, carbon, and potassium nitrate.火药是由硫 、 碳和硝酸钾组成.A smell of gunpowder penetrated the woods.森林中弥漫着火药味.Gunpowder was used in China as far back as the 11 th century.远在公元11世纪,中国已使用火药.Gunpowder w...