石英的

The results show that the dielectric constant and thermal expansion coefficient increased,the dielectric loss and bending strength desreased with the increasing of anorthite content.

钙长石含量大于50wt%的复合材料中α-石英和方石英的析出增加了材料的热膨胀系数，但对材料的介电性能影响不大。

The separation mechanisms of powder quartz and clinochlore as well as the adsorption mechanism of the anionic collector were investigated.

采用油酸作阴离子捕收剂，用反浮选的方法对粉石英的纯化进行研究，探讨粉石英和斜绿泥石的分离机理以及捕收剂的吸附机理。

The purification of powder quartz was studied through reverse flotation by using oleic acid as the anionic collector. The separation mechanisms of powder quartz and clinochlore as well as the adsorption mechanism of the anionic collector were investigated.

采用油酸作阴离子捕收剂，用反浮选的方法对粉石英的纯化进行研究，探讨粉石英和斜绿泥石的分离机理以及捕收剂的吸附机理。

The results show that quartz cannot react with oleic irons at pH=8-10, because it is difficult to combine with metallic irons. On the contrary, clinochlore can adsorb with oleic ions because there are enough active metallic positive ions between the minerals layers which can combine with clinochlore. The clinochlore can be hydrophobic, and so the separation can be realized finally. At pH=9, the clinochlore removal rate is the maximum, the purity of SiO2 is 99.86%, and the recovery of SiO2 is 35%.

结果表明：在pH为8~10的碱性溶液中，粉石英难与金属阳离子缔合，所以，不与油酸根离子结合；而斜绿泥石解离后层间存在活性金属阳离子，可与油酸根离子发生化学吸附产生疏水作用，因而使用反浮选的方法能有效地实现二者的分离：当pH为9时，斜绿泥石的去除率最高，粉石英的纯度达99.86%，回收率为35%。

The reflective index of cristobalite is reduced from 1.55 of quartz to 1.48, near to the reflective indexes of PE, PP and some resins.

方石英的折射率从石英的1.55下降到1.48，更接近PE、PP及一些树脂的折射率。

The formation of α-quartz and cristobalite in the composites containing above 50% ceramic content during the sintering process has bad effect on thermal expansion behaviour, but has little effect on the values of dielectric properties of the composites.

锶长石含量大于50%的复合材料中α石英和方石英的析出增加了材料的热膨胀系数，但对材料的介电性能影响不大。

In various steps of the experimental flow,biological component,clay minerals and feldspar etc.

在流程中的不同阶段可有效去掉全样中的生物组分、粘土矿物和长石等，取得海洋沉积物全样的总陆源矿物、石英+长石、石英的相对和绝对含量，通过计算可获得各种组分的通量，通过粒度分析可获得粒度数据。

Based on lots of indoor observation, tests and analyses by 4 wells in the two areas, it is discovered that authigenic quartz in sandstone can be divided into three kinds:narrow,width and fine crystal. Species and composition of sandstone are the main factors which controled the formation of authigenic quartz.

对周口和通许两地区4口井砂岩的薄片观察、多种测试、分析，发现砂岩中石英的增生可分窄边型、宽边型和自形边型3种，增生石英的发育情况与砂岩的类型、成分等密切相关。

The chemical composition, crystal morphology, fluid inclusions and thermoluminescent characteristics of non-metallic mineral s such as quartz and carbonate from the Jindoushan gold deposit were studied in detail.

对产于烟台金斗山金矿内的贯通性非金属矿物石英及碳酸盐类的化学成分、晶体习性、流体包裹体和天然热发光特征做了研究，结果表明，矿床的主成矿阶段的环境介质为酸性偏中性，富矿和贫矿石英的热发光曲线均为双峰型，但峰点温度、总积分强度有显著差异。

In this paper,the basic features of quartz and the theoretic basis for quartz to be taken as a tracer for material source are summarized,and the material source tracing methods to use scanning electron microscope,mass spectrometer,electron spin resonance and cathode luminescence and the feasibility of these methods are introduced in detail.

综述了石英的性质和它作为有效指示剂来示踪物源的理论基础，进而详细介绍了使用扫描电镜、质谱、电子自旋共振和阴极发光等仪器对石英矿物的表面微结构、氧同位素比值、形成年龄和阴极发光颜色等特征进行研究来追踪物源的方法以及这些方法的可行性。

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。