碳酸钙方解石结晶(calcite calcium) 碳酸钙霰石结晶(aragonite calcium) 碳酸钙在过饱和状态下结晶沉积在热交换器、热水壶、热水管道等上面。
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The fossils buried in Pleistocene and earlier ocean sediments were of foraminifera—small, single-celled marine organisms that secrete shells of calcium carbonate, or calcite.
在更新世和更早的海洋沉积物中埋藏的化石生物属于孔虫类生物,它们是微小的单细胞海洋生物,其分泌的硬壳由碳酸钙和方解石组成。
The protein converts calcium carbonate into calcite crystals which makes up the egg shell, creating six grammes of shell every 24 hours.
这种蛋白将碳酸钙转换为构成蛋壳的方解石晶体,每24小时生成6克蛋壳。
In the shell, mineral form of calcium carbonate is calcite and aragonite.
贝壳中的碳酸钙是以文石和方解石形式存在。
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