发布时间:2025-01-19 16:29:49
石英石化学成分是二氧化硅(SiO2)半透明或不透明的晶体,含有杂质时颜色不一。方解石是一种碳酸钙矿物(CaCO3),敲击方解石可以得到很多方形碎块,故名方解石。
小区装的ic卡水表装修弄水电捣鼓了一下水表拆开水表了里边齿轮弄掉了修不好了盖上水表以后家
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