• Under UV light, clean sand appears purple or black. Some minerals, such as calcium carbonate in seashells, glow blue, as does a shovel handle in the picture above.

    紫外线照射下,干净沙子紫色黑色有些矿物海贝中的碳酸钙,会闪着蓝光,就如同上图中的铁锹把手

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  • They would leave subtle clues in the isotopic composition of the limestone by shifting the ratios of light to heavy carbon and oxygen atoms in its calcium carbonate.

    因为如果是那样的话,阳光转换大量氧原子保存石灰岩中的碳酸钙,而事实却是,岩层的同位素组成(Isotopic composition)中没有留下任何蛛丝马迹

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  • Coccolithophores are microorganisms that are covered in plate-like shells made out of calcium carbonate (chalk). The chalky shells reflect light, turning the ocean a milky turquoise color.

    石灰质鞭毛虫(coccolithophores)一类覆盖碳酸钙(粉笔主要成分)岩石板状外壳微生物

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  • Methods and ResultsAt first, we tested calcium carbonate whisker, nanometer calcium carbonate and PLLA by light microscope, scanning electron microscope and transmission electron microscope.

    实验方法结果首先纳米碳酸钙和晶须碳酸钙聚l -乳酸(PLLA)进行光镜扫描电镜透射电镜的检测

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  • As much the cascades of calcium carbonate as the water change color in accordance with changes of the solar light that illuminates them, and the effect is surprising.

    无论是碳酸钙阶梯还是池中的它们颜色照射日光颜色变化而变化,景象十分惊人。

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  • The results show that this method is suited to character activated light calcium carbonate and activated heavy calcium carbonate which particle is very fine.

    结果表明方法适于表征活性轻质碳酸钙颗粒的活性质碳酸钙。

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  • Light calcium carbonate was usually manufactured by chemical process, so its high alkalinity could not be avoided easily.

    由于轻质碳酸钙化学生产碱度不易避免,而且轻质碳酸钙的生产原料质量直接影响碱度。

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  • Based on the theory of sonochemistry, the influence of ultrasound on the carbonation process of the synthesis of nanometer light calcium carbonate is studied initiatively.

    根据声化学有关原理初步探索了超声场对于纳米级轻质碳酸钙合成碳化过程影响

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  • Both of the coarse and fine light-weight aggregates in the concrete were natural calcium carbonate nucleations with loose and porous structure.

    混凝土中的轻质集料一种组织疏松、多孔的天然碳酸钙结核。

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  • Through adding a special crystal-growing controlling agent, a light rhombic shaped calcium carbonate is produced to be used for paper filling and colouring.

    通过加入特定的晶形控制,制得了适合造纸填料颜料使用菱形轻质碳酸钙

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  • The effects of the contents of activated light calcium carbonate, PE wax and acrylic ester(ACR) on the surface gloss of plastics profile shapes were studied.

    研究活性轻质碳酸钙(活性钙)、聚乙烯(PE蜡)、丙烯酸ACR)用量型材表面光亮度影响。结果表明活性钙用量越多,型材表面光亮度越差;

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  • The fluorine reducing agent is prepared from magnesium carbonate, light magnesium carbonate, hydroxyl calcium carbonic phosphate and animal bone through a definite technological process.

    发明一种可以降低饮水含量的降氟,是由亲氟的化合物制成,主要原料有碳酸镁轻质碳酸镁、羟基碳酸磷酸钙动物等。

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  • By using property of separating out water at high temperature for polyvinyl alcohol formaldehyde solution, kaolin and light calcium carbonate can be directly added, and technique is simplified.

    制备方法上利用聚乙烯醇甲醛溶液高温性质直接加入高岭土轻质碳酸钙制胶,简化了工艺

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  • Dry powder granule raw materials which have special requirements to drying. for example: HP vesica nt lees light calcium carbonate active white earth magnetic powder graphite medical slag and so on.

    特殊要求粉状颗粒物料干燥:h p发泡剂、酒糟轻质碳酸钙活性粉、石墨、药渣。

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  • For example: HP vesicant, lees, light calcium carbonate, active white earth, magnetic powder, graphite, medical slag and so on.

    H P发泡剂、酒糟渣轻质碳酸钙活性石墨、药渣。

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  • For example: HP vesicant, lees, light calcium carbonate, active white earth, magnetic powder, graphite, medical slag and so on.

    H P发泡剂、酒糟渣轻质碳酸钙活性石墨、药渣。

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