查询词典 quartz

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。

Easier to deal with POCl3 residuum which condense inside quartz tube containers, reduced 90% above toxic gas, safer for staff's operation.

POCl3 残留物冷凝在石英管容器中，便于安全地处理。减少了90%以上的有毒气体，增加了操作人员的安全性。

Shenzhen Xintian source Electronics Co., Ltd., is a professional manufacturer of quartz crystal resonator of high-tech enterprises.

深圳市新天源电子有限公司，是一家专业生产石英晶体谐振器的高科技企业。

Shenzhen Century Huatai Crystal Co., Ltd. is a professional company integrating production and sales of quartz crystal resonator series.

深圳市世纪华泰晶体有限公司是一家集生产、销售为一体的石英晶体谐振器系列的专业公司。

Lively text, accurate maps, and clear route descriptions enable you to find rhodonite, agate, pyrite, quartz, and much more.

生动的文字，准确的地图，和明确的路线描述可以使你了解辉石，玛瑙，黄铁矿，石英，等等。

Inside the rock body of Rose Stone, in addition to rosy red rhodonite, it also includes tawny and grayish white manganese pyroxene, pink manganesite, black soft manganese mine, other quartz, and dolomite minerals etc.

玫瑰石的岩体内除具有玫瑰红色的蔷薇辉石外，还间夹了黄褐色和灰白色的锰辉矿、粉红色的菱锰矿、黑色的软锰矿，以及其他石英、白云石等矿物。

Quartz is commonly found as a six-sided, prism-shaped crystal topped by pyramid-like form, while calcite usually shows a crystal form of rhombohedron.

石英通常呈六方柱，顶上带有双锥的晶形，而方解石却常以菱形六面体形式出现。

Based on the observation of atomic force microscopy, the etching morphology of faces and sections with different crystallographic significance on α-quartz has been studied. The etching morphology on the natural crystal faces hexagonal prism faces (1010 and 01(average10, rhombohedron positive form face 10(average11, rhombohedron negative form face 01(average11 and the sections between any of the two crystal faces has been observed. It is shown that the etching pit on the same simple form has the same shape, while the orientation of the etching pits can be different. Different simple forms have different shapes of etching pits and the shapes of etching pits on positive form and negative form of the same simple form are also different.

通过对α-石英自然晶面六方柱面10(平均值10和01(平均值10、菱面体正形面10(平均值11与菱面体负形面01(平均值11、以及介于上述自然晶面之间的切面进行腐蚀形貌的观察研究发现，石英晶体同种单形的晶面腐蚀坑形态相同，但方位可以有变化，不同单形的晶面腐蚀坑形态不同；同一单形的正形与负形腐蚀坑形状不同；蚀坑形态能够反映晶体的对称性。

A right hallow circular cylinder of quartz having its generator parallel to the principal axis liberates electricity when subjected to torsion about its axis.

割水晶成一圆柱，圆柱之轴即为晶体之光轴，在圆柱之中心穿一孔道，使成一空心圆柱壳，以金属箔敷於圆柱壳内外侧面成两电极。

It is observable in many crystalline materials, while some materials such as quartz, Rochelle salt, and lead titanate zirconate ceramics display the phenomenon strongly enough for the phenomenon to be of practical use.

在许多晶体材料里都有这种现象，像石英，酒石酸钾盐晶体和钛酸盐，镐酸盐陶瓷都显示了强大的具有实际应用价值的压电效应。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。