同轴的

When the elliptical coaxial line becomes a circular coaxial line, the mode eigenequation of the circular coaxial line can be obtained from the mode eigenequation of the elliptical coaxial line using the asymptotic formulae of angular and radial Mathieu functions.

研究表明：当椭圆退化为圆时，利用角向和径向马修函数的渐进关系，可得到填充多层介质的圆形同轴线的模式特征方程，由此可见，圆形同轴线可看作椭圆形同轴线的特例；当椭圆同轴线内导体半长轴大小为零时，则椭圆同轴线就变成椭圆波导，同样的方法，可得到填充多层介质的椭圆波导模式特征方程。

Energy exchange efficiency of clustering electron beams passing through a cylindrical coaxial TM812 mode cavity resonator is studied,as well as the extraction method of microwave energy from the cavity resonator.

研究了群聚电子注穿越同轴TM812模谐振腔的换能效率和同轴TM812模谐振腔中微波能量的提取方法，论证了其作为毫米波多注速调管的输出腔的可行性。

An algorithm of finding minimum circumscribed circle for the analysis of coaxial errors is proposed. The aim of the analysis together with FEM modeling is to overcome the difficulty of data collection on machinery in operation. An axis is divided into n-sections.

针对工作状态下机械零部件同轴度误差数据采集难的特点，结合有限元后处理，提出了一种通过求解一组投影圆心坐标的最小包容圆来实现分析同轴度误差的计算方法。

Results show that the field amplitude and S parameter decrease with the oblique misalignment angle increase.

结果表明：随着倾斜偏心度的逐渐增大，倾斜偏心同轴波导的S21参数和电场的幅值减小，但减小的幅度不是很明显，不会影响同轴波导的正常工作。

Rossi can offer a wide range of products including parallel, right angle and coaxial shaft gear reducers and gear motors, worm and planetary ones.

公司可以提供的产品范围非常广阔，其中包括：平行轴，直角轴，同轴减速机及减速电机，蜗轮蜗杆及行星系列。

In chapter 4, the in situ measurement system composed of the six-port reflectometer and the coaxial probe is introduced and some guidelines for in situ measurement is highlighted.

第二章建模和计算先对建模方法和反演方法进行了概述，然后建立了同轴探头的谱域全波模型，着重讨论了伽辽金矩量法求解积分方程有关的积分计算问题，分析了同轴探头高次模式的影响，最后给出了波导探头的谱域模型。

To analyze the pseudo phenomena caused by migration velocity error, the paper firstly studied the depth error between post-stack migration and prestack migration caused by same velocity error, and found the depth error was only relative to velocity error and had no direct matter with methods of depth migration (post-stack migration or prestack migration). Then the paper did numerical simulation of a complex lenticular body model with wave-equation modeling and migration, and found that the velocity error could not only induce depth error, but also could change the modality of construction and the event of subjacent layers. Furthermore, it could change the frequency of reflective event. They are the pseudo phenomena caused by migration.

从分析偏移速度误差带来的各种假象出发，本文首先对比分析了速度误差对叠后深度偏移和叠前深度偏移的影响，发现偏移剖面的深度误差仅与速度模型的误差有关系，与具体的偏移方法没有直接的关系；然后对一个复杂的透镜体模型进行了波动方程叠后正演和偏移计算，详细地讨论了不同的速度误差带来的各种假象，发现速度误差不仅会带来深度误差，而且会造成构造体的形态变化，下覆地层同向轴的扭曲，还可能引起地层同向轴的频率发生变化，给资料解释带来一定的假象。

The wheel is fastened to the shaft with a key, and the shaft is joined to other shafts with couplings.

轮子被固定于轴上，这一轴又同其他的轴相偶联。

Parts of the Process Analysis、Process improvements、Die with a complete composite blanking process Piercing 、Expounded washers composite Die Blanking the overall structure and characteristics of the process, Should pay attention to the issue of sexual and assembly process ,Piercing the settlement sheet、 And seam compound die punch slender easily broken、Hole coaxial hard to ensure the short life and die of technical problems.

通过对零件的工艺分析，改进了工艺方案，用一套复合模完成落料冲孔工序，阐述了垫圈冲裁复合模具的整体结构特点及工作过程，应注意的问题和装配工艺性。解决了薄板冲孔、冲缝复合模的凸模细长易断、孔的同轴度难以保证以及模具使用寿命短的技术问题。改进了落料、冲孔、冲缝的制作工艺，设计了一套新型复合冲裁模，提高了工件的同轴度精度，延长了模具的使用寿命。

The discharging current of the accelerator is measured with the Rogowski Coil,the discharging characteristic of the fast electromagnetic valve and the Ar-gaspressure in the coaxial plasma gun are measured with small piezo-electricpressure probes, and the velocity of the plasma in the coaxial plasma gun ismeasured with magnetic pickup coils.

使用压力传感器研究了所研制脉冲电磁阀门的时间特性，以及等离子体碎片加速器同轴枪内中性气体的压力分布；设计罗科夫斯基线圈并测量了本装置的放电电流；设计磁探圈并测量了同轴枪内等离子体的平均速度。

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。