The quartz sand powder mainly used fors the glass , porcelain and ceramics , enamel ware , hot bottle , sodium silicates , cast , building materials , grind , fire - proof , the profession s main raw material of work , communication etc . 石英粉石英砂粉主要是用于玻璃陶瓷搪瓷热瓶胆矽酸钠铸造建材研磨耐火军工通讯等行业的主要原料。
Thermal models show that even if the asteroids assembled immediately after the formation of the chondrules , 26al heating would have raised temperatures in the interiors of ordinary - chondrite bodies to a maximum of 1 , 100 degrees c ? high enough to cause melting of metals and sulfides but too low to melt silicate minerals extensively and differentiate an asteroid 热模型显示，即使小行星在球粒形成之后立刻聚合，铝26的加热最多也只能将普通球粒陨石内的温度提高到1100 ，虽可使金属和硫化物熔化，但并不足以将矽酸盐矿物大量熔化并造成小行星各层分异。
Translucent sio2 sols are prepared from teos using nh3 ? h2o as catalyzer , polyelectrolyte / sio2 composite films are fabricated via electrostatic self - assembly multilayer method , and sio2 thin films are formed by heat - treating the polyelectrolyte / sio2 composite films to eliminate the polyelectrolyte and other components in composite films 摘要以氨水为催化剂，通过水解正矽酸乙酯制备了乳白色二氧化矽溶胶，采用静电自组装薄膜技术制备了聚电解质二氧化矽复合薄膜，并通过热处理制备了二氧化矽薄膜。
This paper discusses how the silicate bacteria affect potassium releasing from minerals , especially the function mechanism during the interaction between bacterial and minerals ; the paper emphasize the problem such as the utilization of silicate bacteria to release significant amounts of potassium from soil minerals in the karst area , and at the same time the utilization of the silicate bacteria in the agriculture of karst area is discussed 主要探讨矽酸盐细菌的解钾作用，以及使难溶性矿物态钾转化为速效性钾的作用机理；同时在研究矽酸盐细菌解钾作用机理问题的基础上，重点探讨了喀斯特环境中利用矽酸盐细菌活化土壤中的矿物钾元素的问题，特别是矽酸盐细菌在喀斯特环境中农业上的利用。
