查询词典 silicon

Through using the high-speed digital camera technology,research is carried out on dynamic combustion process of silicon delay explosive ,In addition,instantaneous velocity as well as average velocity of the combustion of silicon delay explosive is calculated.

采用高速摄像技术对硅系延期药的动态燃烧过程进行了研究，计算了延期药燃烧的瞬时速度和平均速度。

In the present embodiment, the interelectrode insulating film 8 is formed of a silicon oxide film or a silicon nitride film having a thickness of 400 nm or below.

在本方式中，电极间绝缘膜8，由膜厚度为400nm以下的氧化硅膜或者氮化硅膜构成。

Combining the experimental results and theoretical analysis, the following work has been accomplished.(1) Reasons of the decrease of interelectrode capacitance and the increase of discharge gap caused by the powder suspended in dielectric fluid are explained. And the mechanism that surface quality of workpiece improved by powder-mixed EDM is analyzed from this viewpoint.(2) The variation regularity of the percentage of silicon on the machined surface of workpiece has been summarized according to the experiment results when silicon powder was added into the working fluid. The entropy is introduced to explain the reasons for this variation regularity by thermodynamics.(3) The dimensional accuracy is greatly influenced by the overcut resulting from discharge gap and electrode wear in practice application. Empirical formulas for the overcut in EDM and powder-mixed EDM are established based on the experimental results using the ternary linear regressive method in this paper.(4) The influence of main factors on the machined surface characteristics has been evaluated based on the orthogonal experimental design method.

通过一系列普通电火花加工与混粉电火花加工的对比实验，运用工艺实验和理论分析相结合的方法，重点做了以下工作：(1)探讨了粉末颗粒导致极间电容减小、放电间隙增大的原因，并从这个角度解释了混粉电火花加工可以改善工件表面质量的机理；(2)以混合硅粉的电火花加工为例，实验得出峰值电流和脉冲宽度对加工表面层成分中硅元素含量的影响规律，并引入熵的概念从热力学的角度对硅元素含量变化的原因寻找了理论依据；(3)在实际加工中，由于粉末的加入使放电间隙变大，这使得混粉电火花加工的尺寸精度难以控制，本文利用三元线性回归的方法，在实验数据的基础上，建立了两种电火花加工过切量的计算公式；(4)将正交试验法应用于混粉电火花加工实验研究，并通过对实验指标极差的直观分析，得出各电参数对加工指标影响的敏感程度。

Using the mechanism, we also fabricated large-area silicon nanowire p-n junction diode arrays by chemical etching of planar silicon p-n junction wafers in aqueous HF solution containing appropriate silver nitrate near room temperature.

进一步研究了硅衬底在HF-MoxMox=KAuCl4、K2PtCl6、Cu(NO32、Ni(NO3)2、Mg(NO3)2等氧化剂混合水溶液里的腐蚀行为，并提出了一种新的硅纳米线形成机制－金属枝晶辅助纳米电化学机制。

On the point of structure optimization, focusing on the optimization to the quantity factor of silicon cantilever, three kind of power attenuation which effect the Q value and the measure taken to lower the power loss are analysed systematically, and finally a high Q value silicon cantilever resonator with an actual Q reaches 540 is developed.

在结构的优化方面，着重对硅梁谐振器的品质因数进行了优化设计，系统地分析了影响Q值的三种能量损耗形式，研究了为减小其能量损耗而采取的措施，最终设计出在检测条件下实际Q值达540的高Q值硅梁谐振器。

We are one of the largest silicon manufactory in China, and handled the silicon metal for over 10 years.

我们是一个最大的芯片制造商在中国，和处理的金属硅10年以上。

The methyl chloride silane monomer is the most important organic silicon monomer and the foundation and pillar of organic silicon industry.

制备有机硅材料离不开有机硅单体，而甲基氯硅烷则是最重要也是用量最大的有机硅单体，是整个有机硅工业的基地和支柱。

From the next trend of development, productive capacity of organic single silicon, especially the single methyl chloride silicon hydride, will be enlarged; and on the base of increasing the abilities of all kinds, it will be developed new used-area, and added up to new varieties.

从今后的发展趋势看，有机硅单体特别是甲基氯硅烷单体的生产能力和市场需要将进一步扩大，在提高有机硅产品的各项性能指标的基础上，拓宽应用领域，增加新品种。

I The band reaction model of silicon in alkaline solutions in the fundamental theory of silicon anisotropic etching, which has great theoretical and experimental significance in the field of micromechanics.

论文的创造性成果主要体现在：（1）所建立的硅在碱性腐蚀液中的反应模型，从根本上解释了硅各向异性腐蚀的重大基础理论问题，为微机械的基础研究做出了开创性的贡献。

The results show that the porosity of porous silicon increased with the increase of etched time, which lead to the decrease of minority carrier life and the increase of luminescent efficiency of porous silicon.

多孔硅的空隙度随腐蚀时间的延长而增大，这也导致了多孔硅的少子寿命的降低，从而造成多孔硅的光致发光效率随多孔硅空隙度的增大以及少子寿命的降低而提高。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。