石英

石英钟表走时非常准，年误差仅为一两分钟。

Quartz timepieces are very accurate , to a minute or two per year .

石英表走时准。

The quartz watch keeps good time .

属于这类物质的有云母、瓷器、石英、玻璃、木材等等。

To this class of substance belong mica , porcelain , quartz , glass , wood , etc.

三角洲分流中沉积的河流砂是石英质的。

Fluviatile sands deposited by delta distributaries are quartzose .

目前，地震台站一般采用石英晶体钟。

Today , quartz crystal clocks are generally used on the seismograph stations .

探矿人员在这里发现了方解石、石英、石棉等矿藏。

The prospectors have discovered such minerals as calcite , quartz and asbestos here .

卡迪砂岩是岩屑砂岩，由燧石，石英、石英岩、硅化泥板岩和其它岩石碎屑颗粒所组成。

The cardium sandstone is lithic , being composed of grains of chert , quartz , quartzite , silicified argillite , and other rock fragments .

1927年，第一台石英钟问世。

In 1927 , the first quartz clock was developed .

那些山里蕴藏着大量石英。

There is a great deal quartz in those mountains .

PLC和触摸屏在石英晶体谐振器组装系统中的应用

The application of PLC and touch - panel in the crystal resonance assembly system

熔石英材料声光Q开关中附加声光衍射现象的分析

Analysis on additional a-o diffraction in fused silica a-o Q-switches

利用真空蒸发法制备ZnO薄膜，衬底材料是镜面抛光石英片。

The ZnO films were synthesized by vacuum evaporation on mirror-polished quartz substrates .

砂岩基质酸化中HF与石英的反应动力学

Reaction Kinetics of HF and Quarz Sand During Sandstone Matrix Acidizing

光学低通滤波器（opticallowpassfilter，简称OLPF）利用石英双折射晶体的分光性质来实现低通滤波。

Birefringent quartz crystals ′ light splitting characteristic is used in optical low pass filter ( OLPF ) .

石英对Tc吸附的Kd值很低。

The Kd values of Tc on quartz are very low .

TiO2纳微孔膜增敏的压电石英晶体传感器

Improvement of piezoelectric crystal sensor with TiO_2 nano / microporous films

实验动物由中国医科大学实验动物部提供的清洁级健康雌性Wistar大鼠，随机分为生理盐水对照组、石英阳性组、γ-干扰素预防治疗组。

Female Wistar rats all came from animal experimental ministry of China Medical University .

微米级石英空心小球表面TiO2薄膜的制备及其降解性能的研究

Fabrication and photocatalytic of TiO_2 thin film deposited on hollow quartz microball

基于dSPACE的石英压电电机PID控制系统实时仿真

The real-time simulation of the PID control system for piezoelectric motor based on dSPACE

通过DB5弹性石英毛细管柱GCMS分析所得栀子花挥发油，共鉴定了40个化合物并测定了其相对含量。

Analysing on DB 5 fused silica capillary Column by GC / MS. The 40 kinds of compounds were identified .

采用脉冲飞秒激光沉积方法，在石英衬底上制备了CdS薄膜滤波器。

A CdS thin film filter is grown on quartz substrate using femtosecond pulsed laser deposition .

冲积物中石英ESR测年的研究

ESR dating of quartz in fluvial sediments

1300℃时，不定形SiO2进一步结晶形成方石英。

Furthermore , when temperature approaching 1 300 ℃, amorphous SiO_2 was crystallized into cristobalite .

对马氏体球墨铸铁在不同pH值石英砂浆中的静载三体腐蚀磨损特性进行了试验研究，并与低铬白口铸铁进行了对比。

The three body corrosion wear behaviors of martensitic ductile iron and low chromium white cast iron under the test conditions of different pH value slurries have been studied .

采用溶胶-凝胶法于ITO导电玻璃和石英玻璃基底上制备了均匀透明的TiO2多孔纳米薄膜。

The uniform transparent porous nanocrystalline TiO_2 films were prepared on ITO conductive glass and quartz glass substrates by sol-gel method .

采用layerbylayer（LBL）的方法，将基板依次在具有光敏双键的季铵盐水溶液和聚乙烯基苯磺酸钠水溶液中浸泡，石英基板表面形成了自组装多层沉积膜。

By using layer-by-layer method , photosensitive self-assembled multilayer film on quartz substrate was prepared in aqueous solution of cationic amphiphile and poly ( sodium 4-styrenesulfonate ) .

方石英形成于石英或鳞石英热力学稳定区是一种普遍的现象，并基本上是由非晶态SiO2转变而成。

The cristobalite , transformed from amorphous silica basically , is ubiquitous in the thermodynamic stable region of quartz or tridymite .

石英接尘者红细胞膜GSH-px活性影响因素的多元回归分析

Multiple regression analysis of risk factors of GSH-px activity in erythrocyte member in human occupational exposed to quartz dust

用椭偏仪和透射光谱分别测量并计算了制备在Si（111）、石英玻璃基片上薄膜的折射率。

The refractive index of the films fabricated on the Si ( 111 ) and fused quartz glass was measured and calculated by the ellipsometry and optical transmission spectra respectively .

结果表明，溶剂能够与酚醛树脂在石英纤维表面形成竞争性吸附，从而影响树脂在RTM模具内部不同位置的分布和复合材料的力学性能。

The results show that solvents compete with phenolic resin for the adsorbing sites on the silica fiber .