双晶的

This course is designed thyristor double closed loop dc speed control system design.

本次课程设计主要研究的是双闭环直流晶闸管调速系统设计。

In order to adapt to production requirement of large scale and high efficiency, we have designed the cupola with two lines and large distance.

曾晶为了适应大规模、高效率的生产要求，对普通冲天炉进行改进，设计出双排、大间距冲天炉。

The study of nucleating agent concentrations indicates that different concentrations have different influences on glass devitrification degrees, crystal phase amounts and cystal sizes.

采用复合晶核剂可以达到双碱效应，其离子堆积密度好，可以促进玻璃体中的溶解，降低界面能，使成核活化能降低。

The biaxial molecules interact via dispersion forces and the molecular centres of mass are located at the sites of a simple cubic lattice.

双轴分子通过色散力作用，使分子质心固定在简单立方晶格的格点上。

The study of structure shows that the noncrystalline network is composed of [PO_4] tetrahedron and [VO_5] trigoral bipyramid.

结构研究表明[PO_4]四面体及[VO_5]三角双锥体共同构成非晶态的网络骨架。

The molecular sieve is prepared in the steps: at the room temperature, hexadecyl trimethyl ammonium bromide is mixed and dissolved with the sodium hydroxide, and is added with TEOS in dropping way, and simultaneously added with Me metal salt water solution and lanthanum nitrate solution in dropping way; the pH value of the mixed solution is adjusted by acetic acid to be 10 to 11, and is mixed for 1 to 2 hours after being stabilized; the sol is moved into a polyfluortetraethylene bottle to be heated and crystallized for 2 days in the oven at the temperature of 100 DEG C; after filtering, washing and drying for nights, and being calcined in a muffle at the temperature of 550 DEG C for 3 to 7 hours, the dual-metal-atom improved MCM-41 mesoporous molecular sieve is obtained.

该分子筛的制备为室温下，将十六烷基三甲基溴化铵和氢氧化钠混合溶解，搅拌并滴加入TEOS，同时滴加入Me金属盐水溶液和硝酸镧溶液并搅拌，用乙酸调节pH值至10～11，稳定后搅拌1～2小时，溶胶转入聚四氟乙烯瓶中在100℃下烘箱水热晶化2天，经过滤、洗涤、干燥过夜，马弗炉550℃焙烧3-7h，得双金属原子改性MCM-41介孔分子筛产品。

"Investigation and Development of Miniaturized Chip...

47，281，可应用在无线区域网路之小型化晶片型双频带通滤波器的。。。

By use of the double-jet apparatus controlled by a microcomputer, cubo-octahedral AgBr grain emulsions in which formate ions were doped at subsurface of AgBr microcrystals, were prepared.

使用反馈式微机控制双注乳化仪，制备了甲酸根离子掺杂于颗粒次表面的立方八面体溴化银微晶乳剂。

From electrom microscopy Pattern, The structure of the network was consisted of fibrils with different degree of orientation.

用Tsvankin-Buchanan SAXS方法计算了双拉PET薄膜的长周期，无定形层厚度，晶片厚度及一维结晶度。

This trend depended on the strength of Lewis base sites M=O and activity of lattice oxygen of catalysts.

这一顺序与各催化剂表面的Lewis碱位M=O碱性的强弱、双键晶格氧活性相一致。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。