查询词典 quartz

Next we analyze the dispersion relations and frequency versus length to thickness ratio of coupled thickness-shear ,flexural and extensional vibrations in the AT-cut quartz crystal plate by improved Mindlin plate theory , when we determine the optimal important design parameters of quartz crystal plate , above conclusions may be our basis .

用修正后的Mindlin板理论分析了晶片中厚度-剪切、弯曲振动和拉伸振动模态耦合的色散关系图和频谱图，其中的频谱图可作为晶片重要参数选择的依据。

It is China's planned economy to a market economy the most heated period of the quartz watch a large number of private enterprises have emerged, there has been a large number of assembled quartz watch brands, was the more successful the operation is currently in the domestic watch market still occupy a certain share of the "Fiyta" and "Rossini."

彼时，这是中国从计划经济向市场经济的最激烈的时期石英手表的民营企业大量出现，但一直是组装石英表品牌众多，是比较成功的运作，目前在国内手表市场仍然占据了一定份额的"飞亚达"和"罗西尼"。

Like, the antique imitation quartz stone , the mushroom quartz stone , flame stone, hone stone, sandblast, and so on, Because this kind of stone mainly expresses the machined surface to be coarse.

如仿古石、剁斧石、蘑菇石、花岗石火烧板，机刨板，亚光板，喷砂板等，是石材表达加工的另外一种形式。

However, it is difficult for the quartz substrate to scale-down by photolithography. In this article, we develop another type of piezoelectric material, PbZrxTi(1-x)O3, as a thin film by sol-gel route to replace the quartz crystal as a resonator. The novel hydrothermal annealing with microwave system is proposed to substitute the conventional furnace annealing.

本研究则是用同样具有压电性质的材料锆钛酸铅(PbZrxTi1-xO3)，以溶胶－凝胶法制成压电薄膜，来取代传统的石英晶体；再以微波反应系统进行水热式退火，来取代传统高温制程上的热处理方式，同时根据实验结果，进一步推论水热式退火的反应机制。

In the original production of mica only on the basis of can provide you with sericite, vermiculite powder, superfine superscalar, quartz powder, silica powder, such as series of mineral powder and natural sand gravel mechanism, non-metallic minerals such as quartz sand, the company adhere to the "strict management, quality first "The production and management principles, follow the" integrity-based, service-oriented "principle, has been praised many partners, but also for enterprise development has laid a solid foundation.

在原来只能生产云母粉的基础上，可同时为您提供绢云母，蛭石粉，超细超纯，石英粉，硅微粉等系列矿物粉体及天然采砂机制卵石，石英砂等非金属矿产品，公司奉行"严格管理、质量第一"的生产经营方针，遵循"诚信为本、服务至上"的原则，得到了众多合作伙伴的好评，同时也为企业发展打下了牢固的基础。

The primary reason found why sillimanite is difficult to separate from quartz is that Fe 3+ and Al 3+ can activate the floatation of quartz in a neutral or slightly alkaline medium with sodium oleate as a collector.

结果表明：采用油酸钠为捕收剂，Fe3+和Al3+在中性或弱碱性介质中对石英浮选有很强活化作用，从而使硅线石和石英浮选分离困难。

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。

Non-metallic minerals are mainly limestone, dolomite, quartz sandstone, sillimanite, fire-resistant clay, broken mica, talc, serpentine, quartz, feldspar, rock wool with diabase, with finishes of granite, marble, heavy Spar, and so on.

非金属矿产主要有石灰岩、白云岩、石英砂岩、硅线石、耐火粘土、碎云母、滑石、蛇纹石、石英、长石、岩棉用辉绿岩、饰面用花岗岩、大理岩、重晶石等。

Besides the restraining effect to quartz, soluble glass had a certain effect in dispersal of the pulp.According to the research, the text had basically clarified the new process flow in the separation between phosphorite and dolomite, calcite and quartz.

通过本文的研究，基本上阐明了胶磷矿与白云石、方解石及石英分离的新工艺和作用机理，为该技术的推广应用奠定了基础。

The function mechanism among the minerals and floatation drugs had been studied with the way of IR and academic calculation, which pointed out that absorption of G-4 on the surface of phosphorite belonged to physical and chemical types, but the chemical one was in the highest flight. Absorption of amine collector named GE-609 on the surface of quartz belonged to electrostatic and physical type. Distilled water could hardly wash the GE-609 down from the surface of quartz. Leading component of S-721 was the concentrated compound of naphthol sulfonic acid and formaldehyde. The compound had a stronger affinity to the Mg~(2+) on surface of dolomite than the Ca2+ on surface of phosphorite, which is the essential reason in the separation of phosphorite and dolomite. The leading components of soluble glass in function were HSiO3 hydronium and F^SiC^ colloid granule.

通过红外光谱测定以及理论计算的方法研究了选矿药剂与矿物间的作用机理，研究表明：脂肪酸捕收剂G-4对胶磷矿的捕收作用是以化学吸附为主、化学吸附与物理吸附共同作用的结果；胺类阳离子捕收剂GE-609在石英表面的吸附属于静电物理吸附，但很难用水洗的方法使GE-609从石英表面脱附；S-721主要成分为萘酚磺酸与甲醛的缩合物，萘酚磺酸与甲醛的缩合物对白云石表面Mg~(2+)的吸附明显强于对胶磷矿表面Ca~(2+)的吸附，这是胶磷矿与白云石分离的根本原因；水玻璃溶液中对石英起抑制作用的主要组分是HSiO_3~-和H_2SiO_3胶粒，水玻璃除对石英起抑制作用外，对矿浆还具有一定的分散作用。

More than five decades after the Indian constitution promises a casteless society, there is no sign that the castes are disappearing.

在印度宪法允诺一个&无种姓&社会五十多年后，种姓尚没有显示出任何要消失的迹象，但变化也确确实实地发生了。

Don't distract him from his studies.

他在学习不要打扰他。