晶石

The results show that higher zircon addition resists the densification of fused magnesia zirconia materials,and the zircon addition influences the crystalline size of periclase,pore size and the pore structure significantly.

结果表明，配料中锆英砂含量的增加使熔浆的粘度上升，合成料难以致密化。锆英砂配入量对ZrO2晶形及晶粒尺寸影响不大，但明显影响方镁石的晶形、晶粒尺寸以及气孔的形状和尺寸。

Consequently, they continued to grow and connected with each other to form the skeletal crystal for the porphyroblast.

本区石榴石、十字石等变斑晶的生长过程有多种形式，多数单晶不是一开始就环绕一个晶核不断增长，而是以多结晶中心聚集生长为特征。

Based on the ottimizing, we have obtained silicious ZSM-5 zeolite with less than 500 nm crystal size and as high as 84% product yield based SiO2 from a gel of SiO2/Al2O3 = 170, which meant a high possibility of commercial application.

物料恒算表明，在本文所建立的优化合成体系中，从SiO2/Al2O3 =170的凝胶中水热晶化出小于500 纳米的小晶粒ZSM-5沸石的二氧化硅收率约为84%。在晶化母液循环使用的情况下，上述体系具备了工业化应用的可能。

The invention relates to a preparation method of the ZSM-5/mordenite compound molecular sieve, mainly solves the complex question which needs to add the seed crystal or subsect the crystallization in the existing compound molecular sieve synthesize process.

本发明涉及一种ZSM-5/丝光沸石复合分子筛的制备方法，主要解决现有复合分子筛合成过程中需加入晶种或需要分段晶化等较为复杂的问题。

When handcrafting Ametrine jewelry we always try to ensure that both the Amethyst and the Citrine are clearly visible to the naked eye.

在加工莹石珠宝时，一定要保证肉眼能清楚地看到紫晶和黄晶两种颜色。

Main factory; turquoise, agate, shell, jade crystal, Citrine, Amethyst.

本厂主营；绿松石，玛瑙，贝壳，玉石水晶，黄晶，紫晶。

By analyzing the mineral composition and chemical composition of coal fly ash as well as synthetical mechanism of the 4A molecular sieve ,the technological flowsheet for preparing 4A molecular sieve from coal fly ash with hydrothermal method has been designed.

通过分析粉煤灰的矿物组成、化学成分和4A分子筛合成机理，设计了粉煤灰水热法制备4A分子筛的工艺流程，并重点介绍了粉煤灰的n(S iO2)/n(A l2O3)、n(Na2O)/n(S iO2)、n(H2O)/n(Na2O)、凝胶形成温度和时间、晶化温度和时间以及晶种添加等方面的原理及工艺参数选择情况，可为粉煤灰合成高品质的A型沸石提供借鉴。

The smooth and uniform calcium carbonate whiskers with aspect ratio 30-60 were produced without any additive, and the special branch-like calcium carbonate crystal was also prepared surprisingly. Furthermore, the mechanism for the calcium carbonate whiskers growth was discussed.

在未添加任何添加剂的情况下，成功制得长径比约30～60、表面光滑、大小分布均匀的文石型晶须及形貌独特的树枝状晶体，并对晶须的形成机制进行了分析。

The smooth and uniform calcium carbonate whiskers with aspect ratio 30-60 were produced without any additive, and the special branch-like calcium carbonate crystal was also prepared surprisingly. Furthermore, the mechanism for the calcium carbonate whiskers growth was discussed.

在未添加任何添加剂的情况下，胜利制得长径比约30～60、表面光滑、大小分布均匀的文石型晶须及形貌独特的树枝状晶体，并对晶须的形成机制进行了分析。

The study compared the xonotlite synthesized by crystal silicon and amorphous silicon mixed with calcium oxide and treated in the sealed steel alloy autoclaves, the synthesize temperature and time were studied.

采用晶体与非晶态硅质原料，与氧化钙在高压釜中进行动态水热反应，合成晶须状硬硅钙石晶体，研究合成温度，保温时间等工艺参数对最终结晶产物的影响，并使用XRD、SEM对水热合成的产物进行分析。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。