天然矿石 meaning in English
natural crystal
natural ore
Examples
- Inside , coking , sintering and smelting plants churned out crude iron and steel
门里面是焦炭，烧结和熔炼厂搅拌天然矿石和钢水的熔炉。 - I then thought that the greater activity of the natural minerals might be determined by the presence of a small quantity of a highly - radioactive material , different from uranium , thorium and the elements known at present
我随后想到天然矿石中较大的活性可能是因为其中含有少量的高放射性物质所致，这种物质不同于铀、钍或其他已知的任何元素。 - Polylactic acid ( pla ) of different molecular weights were synthesized by the direct condensation of lactic acid with modified gneiss as the catalyst , or with modified gneiss and stannous caprylate as the catalyst in the same reaction conditions and different reaction times
摘要以天然矿石改性片麻岩为聚合反应的催化剂，通过直接缩聚方法制备了不同分子量的聚乳酸。 - In this paper tio2 / minerals have been prepared using natural minerals as carrier and the industrial metatitanic acid and the industrial sulfate titanium liquid as the raw material based on the effects such as loading capacity of tio2 , specific surface area of minerals , different mineral source and preparation cost . the acid treatment and heat treatment of minerals , preparation methods and condition of ticvminerals have been studied , the photocatalytic experiments on samples were tested from degrading methylene blue solution , and some important results as follows : 1
本研究以天然矿物对tio _ 2的负载能力、比表面积、矿物来源、材料成本等因素为依据，通过对天然矿石载体的活化工艺研究和工业偏钛酸、工业硫酸钛液(以下简称浓钛液)为原料制取tio _ 2天然矿物复合材料的制备工艺研究，以及样品光催化降解有机物的研究，最终制得了具有光催化活性的tio _ 2天然矿物复合材料。