方石英

This rock zone, with a NE striking, the whole length of 1 400 km and the width of 100～150 km, is characterized by not onlyalkaline rocks (analcite biotite olivine melilitites, leucititic alnoites, nephelite syenites, aegirite augite syenites, melanite syenites, riebeckite syenite and aegirite bearing quartz syenites) and alkaline granite (riebeckite granite, and aegitite augite riebeckite granite), but also a lot of syenites, monzonites and alkaline feldspar granites or miarolitic K feldspar granites.

该岩带全长约1400km，宽100～150km，不仅发育有狭义的碱性岩(方沸黑云橄榄黄长岩、白榴黄长煌斑岩、霞石正长岩、霓辉石正长岩、黑榴石正长岩和含霓石石英正长岩)和碱性花岗岩(钠闪石花岗岩、霓辉石钠闪石花岗岩)，还发育有大量的正长岩类二长岩类碱长花岗岩或晶洞钾长花岗岩。

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。

Titanium ions were implanted into quartz and quartz coated with Ti film by MEVVA ion source implanter. The dose was 3×10^16 ions/cm^2 and 5×10^16 ions/cm^2. The ion energy and depth distribution were analyzed using simulation method.

为提高石英玻璃表面金属化膜层与基底的结合强度，利用金属蒸发真空弧离子源引出的Ti离子对石英玻璃及镀Ti膜石英玻璃进行离子注入，剂量选择3×l0^16 ions/平方公方，5×10^16 ion/平方公分，模拟分析了注入离子能量的分布。

Three kinds of ash were mainly inclusive of quartz, potassium iron oxide, microcline and periclase.

XRD分析表明：3个温度下灰样均含石英、铁酸钾、单钾芒硝与方镁石。

Often divided into two types:(1) sine wave oscillator, according to the network oscillation frequency of the different loop selected further divided into RC sinusoidal oscillator, LC sinusoidal oscillators, quartz crystal oscillators, voltage-controlled oscillator, voltage-controlled crystal oscillator and other forms;(2) non-sinusoidal oscillation device, also known as relaxation oscillator, is the use of capacitor charging and discharging and active device (transistor, FET, single-junction transistor, etc.) to generate the pulse-off square wave, rectangular wave, triangle wave, sawtooth wave, or these basic waveforms synthetic waveform and its frequency by the LC time constant charge and discharge circuits to decide.

常分两大类型：（1）正弦波振荡器，根据振荡环路中选频网络的不同，又分为RC正弦波振荡器、LC正弦波振荡器、石英晶体振荡器、压控振荡器、压控石英晶体振荡器等多种形式；（2）非正弦波振荡器，又称张弛振荡器，是利用电容充放电及有源器件（晶体管、场效应管、单结晶体管等）的通断来产生脉冲方波、矩形波、三角波、锯齿波或这些基本波形的合成波形，其工作频率由LC充放电电路的时间常数来决定。

With the decreasing temperature, the solubility of the other components in sillimanite decreased and most of the dissolved components were exsolved, resulting in the formation of the exsolution texture.

南极拉斯曼丘陵长英质片麻岩中的粗粒夕线石可能有内部出溶现象，出溶形成的矿物有磁铁矿、钛铁矿-赤铁矿和石英出溶矿物条纹，并有少量的斜方辉石。

It has high SiO2,low flux (AL2O3+2R2O),low Fe2O3,high refractoriness under load, low true density,low residual quartz,high tridymite and cristobalite.

该产 品具有SiO2含量高，熔融指数（AL2O3+2R2O）低、Fe2O3含量少，荷重软化点高、真密度小、低含量残余石英、方、磷石英含量高等特性。

And we got an aluminogermanate KAlGe〓O〓 and a borogermanate LiBGeO〓, whose structures are analog to paracelsian and cristobalite respectively.

研究了含铝、硼、锌等金属锗酸盐的合成，以碱金属离子作为结构导向剂成功地合成出铝锗分子筛KAlGe〓O〓和硼锗分子筛LiBGeO〓，其拓扑结构与长石Paracelsian和方石英的结构类似。

And then the TiN crystal particles can act as heterogeneous nuclei to induce the oxynitride glass to crystallize bulkly during heat-treatment.

在玻璃晶化处理时，首先在TiN微晶粒子的周围析出含有Ti、N成分的未知晶相，而后相继析出方石英和α-堇青石。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。