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单词

calcite

读音
ˈkælsaɪt
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释义

n. [矿物] 方解石

例句

Over millions of years, groundwater left deposits of a mineral called calcite, on the rock within Devil's Hole.
在数百万年的时间里,地下水在魔鬼洞内的岩石上留下了一种叫做方解石的矿物质沉积物。
The ratio of oxygen-16 to oxygen-18 found in the calcite of a foraminifer's shell depends on the temperature of the water in which the organism lived.
在有孔虫壳的方解石中发现的氧-16和氧-18的比例取决于该生物生存处的水温。
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。

强化记忆

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But trilobites left a remarkable record behind.Their calcite exoskeletons made for hardy fossilsthat would remain intact for hundreds of millions of years to come.
trilobites had compound eyes composed of many tiny lenses.But theirs were made of the mineral calcite,which also constituted their exoskeletons.
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