石英

Dawsonite in the shapes of foliated columnar, cluster, radial, chrysanthemum or random hair mainly filled in the intergranular pores as cements and a few replaced grains such as feldspar and quartz.

其中，片钠铝石呈板柱状、束状、放射状、菊花状、杂乱毛发状集合体，主要作为胶结物产于碎屑岩碎屑颗粒间的孔隙中，少量交代长石、石英等碎屑。

During water quenching of meltten these alloys in fused silica tubes, the icosahedral quasicrystal solidified first, then the decagonal quasicrystal, and finally the crystalline approximants.

将成分为〓〓的合金放在抽真空的石英玻璃管中熔融后水淬，二十面体准晶首先形成，接着是十重对称准晶，最后形成的是准晶的晶体近似相。

The gas phase oxidative cracking of decane and hexane has been investigated in this paper.

采用石英管反应器，常压下研究了正癸烷和正己烷的气相氧化裂解过程。

The system is made up by silicon crystal oscillator,frequency divider,number counter,decipherer,LED indicator and calibrated circuit and utilizes the medium-sized and small-sized integrated chip.

本系统由石英晶体振荡器、分频器、计数器、译码器、LED显示器和校分电路组成，采用了中小规模集成芯片。

The decohesion of the weak interface between particle and matrix may be considered as the origin of toughening.

认为颗粒与基体间弱界面的解聚是熔融石英颗粒复合材料韧化的原因。

The isogram of thickness and grade of the orebody suggests that theconnection line of the mineral concentration area is coinciding with thepitch direction of the orebody; and the appearing rate ofα—βpeak ofquartz decrepitation temperature has a distribution regulation, whichchanges from high to low with the depth of the orebody. This regulationsuggests that the deposit bellow the 180m bears a good prospectingperspective.

通过编制矿体厚度、品位等值线图，发现金矿化富集部位的连线同矿体的侧伏方向一致；研究发现石英矿物爆裂法测温的α—β相转变峰的出现率在矿体中具有一定的分布规律，从矿体浅部到深部α—β相转变峰出现率由高到低变化，据此规律预测矿床180m中段以下深部还具有很好的找矿前景。

Study on an UV transmission quartz depolarizer with narrow bandwidth.

一种紫外窄带宽透射型石英消偏器的研究

Study of depolarization mechanism and performances of a monochromatic light crystalline quartz depolarizer .

单色光石英退偏器的退偏机理及性能研究。

Study on the measurement of spectral propertles of monochrmatic light crystalline quartz depolarizer .

单色光石英退偏器的光谱性能测试研究。

In order to understanding the decomposition behaviors of natural gas hydrate in situ,the experiments of methane hydrate decomposition by depressurization in quartz sands of 40 to 20 mesh were carried out.

为了解自然赋存条件下天然气水合物的分解性质，本研究在20～40目石英砂中进行了甲烷水合物降压分解实验。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。