与10%碳酸钠溶液 ( 50毫升 ) 混合搅拌,然后再用50毫升水混合搅拌, 从而析出固体.It is stirred with 10 % sodium carbonate solution ( 50 ml ) and then with water ( 50 ml ), after which It'solidifies.经过加入碳酸钠能被软化的硬水,称为永硬水.Hard water which can be softene...
探矿人员在这里发现了方解石 、 石英、石棉等矿藏.The prospectors have discovered such minerals as calcite, quartz and asbestos here.乍一看来, 方解石可能与石英相混淆,因为两者都是透明 、 无色 、 且 “ 呈玻璃状 ” 的.At first glance, calcite might be confused with quartz where both...
This expository dictionary is very useful.这部注解的辞典很有用。The explanatory article in encyclopaedia is a kind of expository writing.百科全书条目释文是一种权威性辞书的说明文字,其语言朴实、洁、谨.An expository treatise or series of annotations; an exegesis.对...
在局部地方白云石和硬石膏也是重要的胶结物;还有少量自生石英.Locally dolomite and anhydrite are important as cements , together with minor authigenic quartz.钱存在银行,利息自生.Money deposited in banks will accrue to us with interest.两种环境下形成的自生矿物组合截然不同.Authige...