查询词典 coupling coefficient

The paper has talked about the basic theory of oscillator and finished the design and test of the parallel coupling the bandpass filter.

本文讨论了滤波器的基本原理，完成了平行耦合微带带通滤波器的设计和测试。

The results show that the coupling effect is more prominent than the effect of the source-receiver distance in Barron's model.

结果表明，在Barron模型中耦合效应比声源与接收点的距离影响更大。

Regarding small convergence interval of conical degree as machinery sealed ring basic principle of structure optimization,with the maximum contact pressure as goal function,with the wear allowance of float ring as designing variable,the first order optimization method was applied to carry on thermal-structural coupling finite element optimization analysis of machinery sealed ring.

以小锥度的收敛间隙为优化原则，以最大接触压力作为目标函数，以静环端面的磨损裕度为设计变量，采用一阶优化法进行机械密封环热-结构耦合有限元优化计算。

Four coupling types of basin and range were recognized faulted depression type and unconformity type.

区内存在3种盆一岭耦合类型：挤压逆冲型、走滑剪切型和伸展拆离型。

Untuned coupling system may be further subdivided into three major classes.

非调谐耦合系统可进一步细分成三大类。

The winding is proved to be suited for detecting the partial discharge and thus can be used as coupling sensor.

通过实验测算认为该传感器的响应特性符合检测系统的需要，能够有效地拾取微弱的局部放电信号。

The development of region economy needs the benign coupling of local government and market.

区域经济的发展需要地方政府与市场的良性耦合。

Dozens of analogues with modification at benzene ring were synthesized by using a metal-catalysis coupling.

另外，采用金属催化的偶联反应我们合成了苯环区取代的一系列类似物。

Some new lignans of dibenzocycloheptadiene and benzofuran analogues were first synthesized successfully by intramolecular nonphenolic oxidative coupling and rearrangement of the 1,4-biaryl-2,3-dimethyl-2,3epoxide substituted butanes with DDQ in TFA.

以DDQ为非酚氧化偶合试剂与1，4-二芳基-2，3-环氧类化合物进行分子内的非酚氧化偶合反应，首次合成了二苯骈环庚二烯类和苯骈呋喃类的新型木脂素，其结构由不同光谱和X-单晶衍射所确证。

Six novel dihydrobenzofuran and benzofuran neolignans compounds(1～6) were synthesized by knoevenagel reactiton,esterfication, biomimetic oxidative coupling ,DDQ dehydrogenation,reduction and hydrolysis with 4-hydroxybenzaldehyde and malonic acid as starting material.

以对羟基苯甲醛和丙二酸为原料，经Knoevenagel缩合反应，酯化、仿生氧化偶联、DDQ脱氢、还原和水解等反应步骤，合成了6种未见文献报道的苯并二氢呋喃新木脂素和苯并呋喃新木脂素类化合物(1~6)。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。