结晶

The presence of REE tetrad effects in apatites and whole rocks of S-type granites has been reported by Sha and Chappell (1999) and Zhao et al.(1999), respectively. The REE tetrad effect in minerals, such as apatite, spessartite, beryl, alkali feldspar and spodumene, from all zones of Altay No. 3 pegmatite has been found remarkable, and the fractionations among isovalent incompatible elements in these minerals are also significant. This paper puts forward that the REE tetrad effect is one of the basic features of peraluminous melts and the origin of REE tetrad effect might be probably related to some processes prior to the formation of pegmatite magma. The immiscibile liquid separation between silicate melt and hydrosaline melt may be responsible for it.

由于阿尔泰3号伟晶岩脉各带磷灰石以及与其共生的石榴石、绿柱石、碱性长石、锂辉石矿物均存在明显的稀土"四重效应"以及相同电价、相似离子半径的不相容元素间存在显著的分异，并结合最近赵振华等(1999)和Sha and Chappell(1999)报道S型花岗岩全岩和单矿物(磷灰石、独居石、长石、黄玉等)均存在稀土"四重效应"这一现象，本文研究提出，稀土"四重效应"是富挥发分过铝质岩浆体系的一个基本特征，其机制既不可能由含稀土的副矿物早期结晶引起残余熔体相中REE含量变化的结果，也不能定性地归因于流体相与熔体相相互作用过程中稀土元素在流体/熔体之间分异的结果，而很可能与伟晶岩岩浆形成之前某些过程密切相关，S型花岗岩岩浆在液相线以上存在硅酸盐熔体与高盐熔体的不混溶液相分离有可能是过铝质岩浆体系产生稀土"四重效应"的主要原因。

The nitrogen content, structure and properties of NCAGE were measured and chara...

结果表明，新型高能粘合剂同时含有-ONO2和-N3基团，其含氮量可达到15%～21%，结晶性下降，在204℃分解，有较大的放热峰，在丙酮等有机溶剂中溶解性很好。

The particles synthesized by this method have good crystalline character, narrow size distribution.

制备出的粒子具有结晶性好，粒径均匀，分布窄的优点。

We think that feature of granitic geomorphologic landscape of Mt. Chaya, which had been formed by syenogranite with medium—coarse grains,mineral crystallized more coarse and equal,joint and fissure of productional are even spacing,unique geomorphologic place and the special climate condition is from north subtropical zone to warm temperate zone, are evidence that granitic geomorphologic is marked zone.

认为嵖岈山花岗岩地貌景观的特征是因嵖岈山花岗岩为中粗粒正长花岗岩，矿物颗粒结晶比较粗且岩性较均一、岩体内节理裂隙发育程度疏密适中、独特的地貌部位和北亚热带向暖温带过渡地带的气候条件形成的，是花岗岩地貌显著地带性有力见证。

It is shown that the change of microfabric is well associated with the geochemical migration of elements in diagenesis of chert.

石英在重结晶过程中对杂质元素的剔除作用是促使某些微量元素产生富集的重要机制。

The results showed that masses of hypha formed in serum-induced RPMI1640 liquid medium and above 96% hypha formed; in the corn-tween80 solid medium, chlamydospore and pseudomycelium formation was evident.

结果表明，在含10%小牛血清的RPMI1640液体培养基中可见成团的菌丝形成，结晶紫芽管检测法能定量分析白色念珠菌菌丝生长状况；在玉米粉-吐温80固体培养基中可见厚壁孢子及假菌丝形成。

By analyzing the chorine alkali industry status in quo, a cooling scheme is advanced to optimize the distribution of NaCl crystal sizes with the purpose of improving the product quality.

通过对氯碱工艺现状进行分析，提出了改进的冷却方案来优化NaCl的结晶粒度分布，以提高烧碱产品质量。

It has been a puzzle and also the bottleneck in the chorine alkali industry how to improve the crystallization degree of salts, which makes separation easier and therefore improves the quality.

如何提高盐的结晶粒度，使其易于分离除去，从而提高产品质量，是当今困扰氯碱工业的一个难题，也是抑制氯碱工业发展的"咽喉"所在。

Using H2SO4 as acidulant,chromic sulfate with high purity was obtained by crystallization,which was applied to leather industry as chrome tanning agent .

将电镀废水中的六价铬还原成Cr，用化学沉淀法和絮凝法将其转化为Cr3沉淀，通过硫酸酸化，结晶为高纯硫酸铬，作为皮革工业的铬鞣剂。

A brownish-black mixture of alkaloids remaining after extraction of crystalline alkaloids from cinchona bark, used as a quinine substitute.

奎诺酊将金鸡纳树皮中提取结晶生物碱之后，剩下来一种黑褐色的生物碱混合物，用作奎宁的替代物

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。