硫酸钙

Other significant compounds are calcium chloride, calcium hypochlorite, calcium sulfate, and calcium phosphate (a plant food and stabilizer for plastics).

其它重要的化合物包括氯化钙、次氯酸钙、硫酸钙，以及磷酸钙(主要用作植物养料和塑料稳定剂)。

Because of the chief equipment and technic are mostly imported from the abroad presently. It is necessary to lucubrate oxidation mechanism of calcium sulfite and the main influencing factors in the oxidation of calcium sulfite, which are valuable for accelerating the oxidation Rate, consummating academic basic of lime stone-gypsum FGD and optimizing technical process A simulate equipment has been designed based on the theory of geometrical comparability which is reduced scale in geometric proportion to the 300MW capacity.

目前我国的湿式石灰石–石膏法设备和技术均从国外引进，因此深入研究脱硫过程中亚硫酸钙的氧化机制和影响亚硫酸钙氧化的主要因素，对提高氧化速度、完善湿式石灰石–石膏法脱硫技术的理论基础、优化烟气脱硫工艺过程具有重要的价值。

The results indicate that, comparing with the crystallization without urea, the time of crystal occurrence is 1.5 times longer, the density of suspensoid is raised by 50%, both of crystal length and crystal width are increased, especially...

粒度分布的定量分析显示，尿素硫酸摩尔比为 3.6：1、过程温度80℃时，硫酸钙的成核速率减少了25%，但结晶成长速率增加了1.2倍，结晶粒度分布中心由72.8mm 增大到 142.8mm，平均粒径由70.98mm 增加为 105.45mm 。

Calcium sulfate whisker and magnesium sulfate whisker as reinforcer,SBS as toughener,ABS as resin matrix were used for manufacturing modified ABS composite by melt mixing and extrusion.

以硫酸钙晶须、硫酸镁晶须为增强改性剂，高胶粉为增韧改性剂，ABS为主体材料，通过采用熔融混合挤出制得改性ABS复合材料。

The results indicate that PESA has excellent inhibitive effects to the poor solubility scales such as barium sulfate, calcium sulfate, strontium sulfate and to the calcium carbonate scale is normal.

研究了PESA在油田用水中的阻垢效果，结果表明，PESA对常遇到的硫酸钡、硫酸锶、硫酸钙类难溶垢有着优异的阻垢效果，对碳酸钙也有较好效果。

It was found that halite was closely cemented with soil particles, thenardite (Na_2SO_4) was transformed from mirabilite (NasSO_4·VlOH_2O) by dehydration, and the glanberite [Na_2Ca (SO_4)_2] was formed by calcium sulfate and sodium sulfate. These salt crystals separated were clear, without any mixture.

扫描电子显微镜的照片，展示出某些盐类结晶的自然特征，它们是：与土粒胶结紧密的石盐、由芒硝(Na_2SO_4·10H_2O)脱水转变成的无水芒硝(Na_2SO_4)、或由硫酸钠、硫酸钙形成的复盐——钙芒硝Na_2Ca(SO_4)_2。

The tricalcium phosphate constituent is converted to phosphoric acid and calcium sulfate.

磷酸三钙组分转化成为磷酸和硫酸钙。

Calcium unites with sulphur and oxygen to form calcium sulphate, and phosphors and oxygen to form calcium phosphate, sodium and potassium unite with oxygen and nitrogen to form sodium to potassium nitrates.

钙、硫和氧形成硫酸钙，钙、磷和氧形成磷酸钙，钠、钾和氧、氮结合生成硝酸钠和硝酸钾。

With change of calcium sulfate shape and reduce of compact degree of coat layer on phosphate rock, the velocity of second stage reaction of SSP is accelerated by active addition agent, and with intensification of mass transfer, the rate of first stage reaction of SSP is promoted by ultrasonic.

活化添加剂促进酸矿反应的重要途径是改变硫酸钙结晶的晶习，减弱硫酸钙对磷矿包裹的致密程度，特别表现为对第二阶段的反应十分有利，而超声波对酸矿反应的促进主要表现为提高第一阶段反应的传质过程强度。

In this paper, calcium sulfate whiskers were calcined at different temperature and tested by XRD.

不同温度下煅烧硫酸钙晶须，并用XRD测定煅烧产物的结构，发现其晶型和晶格结构均有变化，600℃左右煅烧的硫酸钙晶须晶格结构最为致密。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了