... natural cadence 固有振荡 natural quartz 天然石英 natural arena illuminance 天然气象光照度 ...
基于105个网页-相关网页
Natural quartz crystal from DONGHAI, JIANG SU mostly include amethyst, smoky quartz and yellow quartz.
东海天然有色水晶主要有紫晶、烟晶、黄水晶。
So the research of producing the high pure quartz with the silica mineral substitutes for natural quartz is imminent.
本文综述了国内外硅石矿物原料替代天然水晶生产高纯石英砂的研究现状；
The main composition of the quartz stone is selected natural quartz. It's made of 87% quartz crystal and 13% resin and annexing agent.
石英石的主要成分主要是精选的天然石英石，由87%的石英石晶体和13%的树脂和添加剂复合而成。
应用推荐