碳酸钙

Some will no doubt flourish, but if the trend continues, as it will for at least some decades, clams, mussels, conches and all creatures that grow shells made of calcium carbonate will struggle.

有些物种会因此得到短暂繁荣，这是毫无疑问的，这种趋势至少在接下来的几十年内还会继续，但假如那时还不停止，那么，包括蛤、蚌、海螺等具有由碳酸钙形成的贝壳的贝类动物的生存就堪忧了。

Some will no doubt flourish, but if the trend continues, as it will for at least some decades, clams, mussels, conches and all creatures that grow shells made of calcium carbonate will struggle.

上升 。有些物种会因此得到短暂繁荣，这是毫无疑问的，这种趋势至少在接下来的几十年内还会继续，但假如那时还不停止，那么，包括蛤、蚌、海螺等具有由碳酸钙形成的贝壳的贝类动物的生存就堪忧了。

Xanthomonas campestris 1.1781 was used as production strain to study the optimization of fermentation conditios of xanthan gum in shaking flaves.

以野油菜黄单胞菌1.1781为生产菌株，进行了摇瓶条件下黄原胶发酵条件的优化研究，得到耐热性黄原胶形成的最佳条件为：蔗糖50.0g/L，蛋白胨5.0g/L，K2HPO4·3H2O4.0g/L，MgSO·47H2O0.2g/L，柠檬酸2.0g/L，碳酸钙3g/L，pH为7.0。

By making them as bacterium fertilizers,and using this fertilizer to rape plant in the lab.

北方石灰性土壤中存在大量的游离碳酸钙而大部分磷存在形态为难溶性的磷酸钙盐。

The best dosage of silicate fiber and the effect of combination of the precipitated calcium carbonate and silicate fiber as filler on paper property are investigated.

摘 要：研究了硅酸铝纤维性能及其作为填料在纸张中的应用，并与轻质碳酸钙填料进行了对比实验，探讨硅酸铝纤维作为填料的最佳加入量及与PCC混合后对纸张性能的影响。

In the paper the main topics are:(1) to analyze the chemistry composition, the X-ray diffraction, the DTA, and the functions of all raw materials;(2) to define the best direction for producing glass and foam glass, and the best burning technical process;(3) to characterize the unit weight and thermal conductivity of foam glass;(4) to analyze the reason of bubbling up, including the influence factor of temperature, time and so on;(5) to discuss the reasons of leading to shortcomings.There is high content quartz (SiO2) in the two gangues from gold mine and potassium feldspar mine respectively. They can be used to prepare glass, because the quartz (SiO2) is the main raw material.

论文的主要内容包括：1、对矿山尾矿的湿化学分析，粒度、X射线衍射和热稳定性的分析，以及硼砂、碳酸钙及制备泡沫玻璃的玻璃粉、磷酸钠实验原料在实验中的作用进行分析；2、确定尾矿烧结成玻璃体和利用玻璃体烧结泡沫玻璃的最佳配方以及两次烧结的最佳烧成工艺条件；3、泡沫玻璃制品的体积密度和导热系数等物理性能的测定；4、泡沫玻璃的发泡机理分析，包括发泡温度、发泡时间、发泡剂的用量、稳定剂的用量及其它因素对发泡作用的影响；5、讨论造成泡沫玻璃成品各种缺陷的原因及其解决方法。

The preparing on calcium sulfonate grease with high performance of rust had proof was then synthesized.

从润滑脂的极压防锈机理着手，利用小分子有机酸等活性氢物质，直接对磺酸钙原料吸附的碳酸钙进行晶型转化，探讨了具有高极压防锈性磺酸钙基脂的研制。

The decrease of the calcium concentration has been observed in all the three influents, and in the same time, ash contents in all the granular sludge increased.

进一步的分析表明，灰分的主要成分为碳酸钙。经过180天的运行后，三种废水颗粒污泥中灰分分别由12.3%上升到70.9%，32.7%，21.2%。

And traces of iron,zinc,calcium carbonate.

微量的铁锌碳酸钙

This algorithm had previously revealed new phases of iron sulfide, calcium carbonate, sulfur and even a superconducting form of oxygen, subsequently confirmed by experiment.

这种算法之前揭示了硫化铁、碳酸钙、以及硫的新形态，甚至发现了氧的超导状态。这些结果随后均被实验证实。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。