Nano - hydroxyapatite was synthesized by hydrothermal method in the submerged circulating impinging stream reactor, using calcium nitrate and sodium phosphate as reactants and acetamide as dispersant.

在浸没循环撞击流反应器中，以硝酸钙和磷酸钠为原料、乙酰胺为分散剂，采用水热法合成了纳米羟基磷灰石。

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Calcium ammine catalyst was prepared with metal calcium, dehydrated liquid ammonia as raw materials, nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

采用金属钙、脱水液氨、载体纳米二氧化硅及改性剂乙腈与环氧丙烷制备出氨钙体系催化剂。

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The drying of calcium carbonate made with nano-technology is currently by the methods such as baking at baking shop, drying at rotating column, spraying baking, flash drying and band-type baking.

纳米碳酸钙新产品的干燥，目前大多采用烘房烘干、转筒干燥、喷雾烘干、闪蒸干燥、带式烘干等方法。

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In particular one part of it - calcium silicate hydrate - refused all attempts to be analysed under an electron microscope or by nano-indentation.

BBC: By Ian Hardy