查询词典 crystal chemistry

On the basis of crystal structure and crystal chemistry theory,according to the crystal cell parameters,the atomic arrangement of calcite,etc.

从晶体化学、晶体结构的角度，根据方解石的晶胞参数、晶体内原子排列的特点等，提出了方解石最小颗粒的假设。

Crystal chemistry characteristics of silicate minerals are closed related with minerals'surface property and flotability.

硅酸盐矿物是自然界中分布最为广泛的矿物，是非金属材料和矿物材料的主要原料，也是提取稀有金属的重要原料。

The crystal structure and surface property of kaolinite, illite and pyrophyllite have been discussed. The influence of residual bond, lattice impurities and grinding behavior on wettability, electrokinetics and floatability have been studied based on crystal chemistry and solution chemistry of flotation.

系统分析了我国铝土矿中含硅脉石矿物高岭石、伊利石、叶蜡石的晶体结构与表面性质，讨论了晶体结构与铝硅酸盐矿物表面断裂键的特性、润湿性、电性及可浮性的关系，以及晶格杂质与可磨性对浮选行为的影响。

The relationship between the orientation of tetrahedral [SO4]2- in sulfate crystals such as barite,anhydrite, epsomite and jarosite and their morphology was studied from the standpoint of crystal chemistry,and the formation inechanisin of their morphology was analysed according to the structural orientation of tetrahedral [SO4]2- and the bonding energy between [SO4]2- and metal ions [M2+] during growth.

本文从硫酸盐类晶体中负离子配位多面体的结晶方位和相互联结的稳定性出发，探讨了硫酸盐类晶体中[SO4]2-结晶方位与晶体结晶形貌之间的关系；认为[SO4]2-四面体与金属阳离子（Ba2+、Ca2+、Mg2+…）结合时，由于晶体结构和生长条件的不同，在晶体各族晶面上的叠合速率和取向不同；晶体的结晶形貌迥然有别。

Recently, this area has become the advanced study of Inorganic chemistry, crystal chemistry and material chemistry in the international.

近年来，这一领域成为国际无机化学、晶体化学和材料化学等学科的前沿课题。

With some examples, the correlat ions between the thermal expansion coefficients of minerals and the types of cr ystal structures, the nature of chemical bonds, the valencies of ions , the interionic distances, the percentage ionic characters, the electronic conf igurations of ions and the chemical compositions are discussed and summarised . The crystal chemistry approach has been used in the calculation of the th ermal expansion coefficients for minerals with simple structures and composition s.

晶体化学方法是研究矿物热膨胀系数的有效方法，但由于矿物的热膨胀系数和晶体化学参数之间的定量关系尚未完全弄清，目前仅仅能对简单结构矿物的热膨胀系数进行计算，结构、成分较复杂的矿物的热膨胀系数计算尚缺乏好的晶体化学模型。

The crystal structure, crystal chemistry and surface property of kaolinite in kaolin clays have been studied.

在前人工作的基础之上，研究了高岭土中高岭石的晶体结构、化学成分与表面电性之间的关系。

Both of phase proportions and compositions of mineral solid solutions could be optionally approximated, based upon the principle of mineral crystal chemistry, the law of mineral paragenetic assemblage, and the priority of partitioning of minor components into the solid solution phases.

优化计算结果的理论依据主要有矿物晶体化学原理、矿物共生组合规律和次要组分分配的固溶体矿物相优先原则。

The sectored periodic table, which can be used to the study of crystal chemistry, has been put forward.

论文的第一部分在分析了金属半径、阳离子半径、元素标准熵、原子折射度等与元素电子构型的定量关系后，鲜明地提出：晶体化学参数与元素的电子构型之间存在定量关系，元素的一些性质与周期表之间可以有统一的定量表述方式。

Studies of beryls from Xuebaoding by means of crystal chemistry, optical analysis, EPR and infrared spectroscopy indicate that beryls have high alkali ions and water content.

本文对雪宝顶绿柱石的晶体化学、矿物谱学、热释光和流体包裹体特征等进行了分析讨论。结果表明，雪宝顶绿柱石化学成分具有富碱、富水，过渡金属离子以Fe3+、Fe2 +为主的特点。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。