石英的

With EPMA and analysis of oxygen isotope composition, the typies of amphibole, chemical composition of hornblende and oxygen isotope composition of quartz in sands and bedrocks in the Hotan River basin were determined.

本文运用电子探针和氧同位素测试等手段，分析了和田河流域沙物质及某些有关基岩所含角闪石的种类、普通角闪石的化学成分和石英的δ~(18)O值。

For example, the secondary overgrowth quartz, authigenic illite, and authigenic ankerite on the cementation was inhibited by oil emplacement, but pyrite was mainly distributed in oil layer and oil water layer, particularly rich in oil water layer.

由于烃类的侵位，使石英的次生加大、自生铁白云石的生长受到抑制，同时也对自生伊利石生长有抑制作用，黄铁矿由于烃类侵位分布在油层、油水层，尤其在油水层中较为发育。

The origin of tight sandstone reservoir is due to the cementation of quartz and crystallization of clay minerals from the pore water.

2砂岩储层致密的原因是石英的胶结作用和粘土矿物的沉淀。

A new collector with chelate-ability,diphenyl α-(3-phenylthioureido) alkanephosphonate,is synthesized,and the collecting performance for cerussite ,calcite and quartz,and the relationship between property and structure are investigated, and the depressor function of pyrogallic acid are also studied.

合成具有螯合性能的新型捕收剂———-α(3-苯基硫脲基)烃基膦酸二苯酯，研究该系列化合物对白铅矿、方解石和石英的捕收能力以及结构和性能的关系，并考查焦性末食子酸的抑制作用。

The conversion temperature of amorphous silica to α-cristobalite decreases from 1470℃ to 700℃ in the presence of Na〓WO〓, and the conversion is accompanied by the great decrease in the surface area of the catalyst.

在有Na〓WO〓存在的条件下，无定形SiO〓转化为α-方石英的温度从1470℃下降到700℃，这种转化同时伴随着催化剂比表面积的急剧下降。

The crystal structure of cristobalite is helpful to optical reflection, and the cristobalite can institute the tiny glass ball to be used as the filler of the reflective paint to reinforce the non-skid property and improve the reflection of paint.

高反射率。方石英的晶体结构有助于光反射，可取代玻璃微珠作反光油漆的填料，既可增强防滑性，又可提高油漆的反光性。

The mineralogical features of quartz are also coincident to the evolution of the gold deposits in both time and space.

5石英的矿物学特征在金矿床的时、空演化上具有一定的规律性。

A mixture of fire clay and ground quartz, used to line metallurgical furnaces.

硅石一种耐火土和石英的混合物，用于作冶金炉的内壁

The alkaline cementitiuos properties of calcining clay which contain kaoline and quartz is studied.

研究了含高岭石和石英的粘土加热脱水后，在碱激发剂的作用下系统的胶凝性质。

Chemical methods proved that the microripple structures are composed of not chromium material but the substrate material of glass or fused silica.

通过化学方法证明了这些微突起结构是由玻璃和石英的主要成分SiO2组成的，并非样品表面的铬元素。

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。