石英的

Since olivine is silica-unsaturated, quartz and olivine never coexist in the same rock. Therefore, in mantle peridotite and other ultramafic rocks, primary quartz can never be found.

由于石英和非饱和SiO_2的橄榄石不能共生，因此在地幔橄榄岩和超镁铁岩中不存在原生石英。

The QVBA key micro-machined technology are also developed in this paper, such as: single step double sides multilayer photolithographic process, quartz crystal anisotropic etching process.

在仿真分析基础上，完成了石英振梁加速度计的设计及关键微加工工艺研究，包括：单步双面多层光刻工艺、石英晶体各向异性刻蚀工艺等。

Our company was established in 1992, and one of the major quartz glass manufacturer in China.

锦州新世纪石英玻璃有限公司座落在辽宁省锦州经济技术开发区，与中国北方的大型国际口岸锦州港相邻，公司始建于一九九二年，是中国主要石英玻璃生产企业之一。

Is currently the quartz glass manufacturing enterprises in the production of the largest varieties, more complete testing means and quartz glass with an integrated processing capacity of enterprises, product quality in the domestic same industry leading level.

是目前国内石英玻璃生产企业中产量最大、品种多、检测手段较为完备并具有石英玻璃综合加工能力的企业，产品质量在国内同行业中处于领先水平。

Topography, geology environmental and ore structure and other conditions are main factors weathering in affecting the powder quartzite.

地形地貌、地质环境和矿石结构等条件是影响微结晶石英岩风化形成粉石英矿的主要因素。

Furthermore, the form of hot water of rich silicon shows formation of the micro crystallization quartzite by the carbonate rocks.

地形地貌、地质环境和矿石结构等条件是影响微结晶石英岩风化形成粉石英矿的主要因素。

Citric acid is a good selective depressant in the floatation separation of sillimanite from quartz because it strongly depresses the metal ions activation of quartz and slightly depresses...

柠檬酸对金属离子活化石英有很强抑制作用，而对硅线石抑制作用较弱，是浮选分离硅线石和石英较好的选择性抑制剂。

It was proved in production and by experiments that tripoli could be used for making various glasswares.

生产试验表明，用粉石英代替脉石英熔制玻璃是可行的。

Test results showed that surface impurity was cleaned out and it was found that the zero probability damage-threshold increased 24% and 50% probability damage-threshold increased 19%.

结果发现，石英基片在经过紫外脉冲激光预处理后表面杂质得到有效清除并暴露了低阈值缺陷，处理后的石英基片零几率损伤阈值平均提高24%左右，50%损伤阈值提高约19%。

Mo ore bodies are divided into quartz porphyry fissure, granodioritic fissure and cataclastic alteration zone quartz vein types according to surrounding rock properties and structural location.

钼矿体依其围岩岩性和构造位置的不同可以分为石英斑岩裂隙型、花岗闪长岩裂隙型和破碎蚀变带石英脉型。

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。