这是由于热液蚀变岩石具有较高的抗风化力的缘故.This is due to the higher weathering resistance of hydrothermally altered rock.反对热液成固的理由是铀和金有着一致的分布.Argument against a hydrothermal origin is the sympathetic distribution of uranium and gold.在所有热液矿...
The structure, the principle of work, bauxite floatation of BF - L floatation machine were presented.本文介绍了BF -L 型浮选机的结构特点, 工作原理及铝土矿选矿的适应性研究.B factor ( BF ) in thyroid function hyperfunction sickness blood serum content a...
A string of scandals is obsessing America...美国正被一系列丑闻所困扰。Why is everyone obsessing over system specs right now?为啥现在人人都对系统配置情有独钟?She stopped drinking but began obsessing about her weight.她戒了酒，但又开始执著于体重问题。I started obsessi...