矾石

Besides calcite, small amounts of quartz, sylvine, arcanite and gypsum are also existent in the cigarette ash.

初步研究结果表明，香烟烟丝中含有一水草酸钙石，过滤嘴中不含任何矿物，烟灰中的矿物主要是方解石，此外还含有少量石英、钾盐、钾矾、石膏等矿物。

Vitriol mountain town alumstone exploits cost low , entire exploit be a strip mining, the ore may ascertain whose use , potasium sulphate , may produce alums , inferior may produce a swelling agent , early strong medium agent , accelerating agent first-class but giving birth to a child according to the grade.

矾山镇的明矾石开采成本低，整个开采是露天采矿，矿石可根据品位确定其用途，上等可生产硫酸钾、中等可生产明矾、下等可生产膨胀剂、早强剂、速凝剂。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。