Fine calcium carbonate dentifrices ingredients effectively clean teeth, a healthier mouth.

微细碳酸钙洁齿成份，有效清洁牙齿，口腔更健康。

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In addition, fine calcium carbonate and a deformable particle were used to protect the reservoir.

并采用细目碳酸钙及变形粒子对油层进行了保护。

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The results have guiding significance for the process design and improvement of fine calcium carbonate .

其结果对微细碳酸钙生产工艺的设计与改进具有指导意义。

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They showed many similarities, he said, including the spherules, calcium sulphate veins and fine-grained structure.

BBC: Opportunity and Curiosity find similar rocks on Mars

The rocks contain very fine-grained sediments but are cut through with pale veins of what could be calcium sulphate.

BBC: Curiosity Mars rover takes historic drill sample

The John Klein slabs contain very fine-grained sediments but are cut through with pale veins of what could be calcium sulphate.

BBC: Curiosity Mars rover spins its rock drill