查询词典 calcium carbonate

But the two-component nucleator,pimelic acid/calcium carbonate exhibited good thermal stability,which infer that there are some interactions between pimelic acid and calcium carbonate.

这可能是由于庚二酸与碳酸钙之间存在某种相互作用，从而使成核效果得以稳定，而辛二酸、壬二酸与碳酸钙组成的双组分成核剂中，两个组分基本独立存在。

Water, containing dissolved calcium hydrogen carbonate, passes through the limestone and drops evaporate on the stalactite, increasing its length with a deposit of calcium carbonate

含有溶解碳酸氢钙的水通过石灰石滴在钟乳石上蒸发，随着碳酸钙沉积物的增加不断增加着它的长度。

The DSC results showed that calcium carbonate,sodium benzoate and terephthalic acid were the nucleating agents of polypropylene with high thermal stability of the nucleating effect,while the thermal stability of nucleating effect of pimelic acid,suberic acid,azelaic acid,and the two component nucleating agents suberic acid/calcium carbonate and azela...

研究了碳酸钙、苯甲酸钠、对苯二甲酸和脂肪二元酸：庚二酸、辛二酸、壬二酸及其与碳酸钙组成的双组分成核剂对聚丙烯结晶成核效果的热稳定性。

Some soil chemical properties, as pH of soils, cation exchange capacity, calcium carbonate, ferriferous oxide and organic matter are studied. Chromium speciation is mainly affected by soil pH, CEC and calcium carbonate, but little by ferriferous oxide and organic matter.

所研究的土壤化学性质中，土壤pH值、阳离子交换量以及碳酸盐量对土壤铬形态分布及生物有效性影响较大，铁氧化物与有机质含量对土壤铬形态的分布及生物有效性有一定的影响。

The morphology of calcium carbonate scale withthe presence of the PAA is not in order any more, but can be still observed the shapeof cubic structure. The crystal morphology of calcium carbonate scale with addingP is completely destroyed, and XRD spectrums show the quantity ofcalcite reduces, so the scales become loose, spongy, floccular and amorphous.

添加PAA后尽管表面不再平整但仍能观察到比较规整的四面体晶体结构；而添加P后晶体形状被彻底破坏，垢样成为疏松、多孔、絮状的无定形聚集体。X衍射谱图也表明，添加P后垢样中方解石含量减少甚多，垢样变得疏松。

The chemical adsorption model of titanite on the surface of finely calcium carbonate was established according to the properties of finely calcium carbonate and titanite and the mutual action mechanism.

硬脂酸钠、钛酸酯和铝酸酯对重质碳酸钙的改性与钛酸酯对硅灰石的改性导致改性剂在矿物表面的反应吸附，吸附以化学吸附为主，物理吸附为辅。

The presence of Mg〓 will change the crystallization process of calcium carbonate and produce aragonite scale. The presence of Zn〓 can prevent the formation of the crystal nucleus of calcium carbonate and then prevent the scale.

当水的硬度、温度增加时，水的结垢速率增加；SO〓和NaCl含量增加，能使水的结垢速率略有增加；Mg〓能改变碳酸钙的结晶过程并产生文石状的水垢；Zn〓的参与能明显阻碍碳酸钙微晶核的生成，从而达到阻垢的目的。

Calcium carbonate crystal form was characterized by microscope and electron-scanning microscope,XRD and FTIR analysis was employed to investigate the morphology of calcium carbonate whiskers.

论文摘要以工业废弃磷石膏为原料制备碳酸钙晶须，利用显微镜和扫描电镜观察晶体形貌，晶须样品的晶型用X衍射和红外光谱进行了表征。

The water-scaling rate will increase when the water hardness or temperature is increased. The water-scaling rate will increase slightly when the concentration of SO〓 or NaC1 is increased. The presence of Mg〓 will change the crystallization process of calcium carbonate and produce aragonite scale. The presence of Zn〓 can prevent the formation of the crystal nucleus of calcium carbonate and then prevent the scale.

当水的硬度、温度增加时，水的结垢速率增加；SO〓和NaCl含量增加，能使水的结垢速率略有增加；Mg〓能改变碳酸钙的结晶过程并产生文石状的水垢；Zn〓的参与能明显阻碍碳酸钙微晶核的生成，从而达到阻垢的目的。

The influences of polyaspartic acid alone, magnetic field alone, and their synergism on the crystal forms of calcium carbonate and the scale inhibition performance were investigated. The calcium carbonate crystal samples were characterized with SEM and XRD.

研究了单独使用环保型高分子聚合物－聚天冬氨酸、磁场以及磁场与聚天冬氨酸的协同作用对碳酸钙晶型和阻垢性能的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。