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The results show that an electron efficiency over 27% is predicted for suitable dimensions for the complex cavity and magnetic field coefficient and current and the velocity ratio of the electron beam.

标 签 3 mm波段二次谐波回旋管复合腔多模注波互作用 3mm band Second-harmonic Gyrotron Complex cavity Multiple mode interacting with an electron beam

A novel matrix transformation, Multiple Cayley Transformation, and its application to the power system small signal stability analysis is presented.

提出了一种新型矩阵变换——多重Cayley变换方法，并将其用于电力系统小干扰稳定性分析。

Multiple sound formats supported (MP3, WAV, MIDI, and CD-Audio) for alarms.

多重声音格式的支持（支持M P3， w av，的M IDI，和C D音频）警钟。

ATRA-induced apoptosis of DU-145 cell is a complex process with multiple genes involved. Pcar may be one of them.

维甲酸诱导前列腺癌细胞DU-145凋亡的过程是一个多基因参与的复杂过程，pcar可能是参与这一过程的基因之一。

With cellobiose and cellooligosaccharide as carbon source, the proliferation multiple of B. odolescentis was 2.14 and 2.84, respectively.

以纤维二糖、纤维低聚糖为C源增殖青春双歧杆菌，菌体质量浓度增殖倍数分别为2.14、2.84。

After multiple rounds of elimination through contest, finally, censorious eyesight has to face RoyalGarden where it was sentenced to death.

挑剔的眼光经历了多轮的淘汰，却最终面对御花苑，获得极刑。

After multiple rounds of elimination through contest, finally, censorious eyesight has to face Royal Garden where it was sentenced to death.

挑剔的眼光经历了多轮的淘汰，却最终面对御花苑，获得极刑。

Multiple center circle, do not elaborate on this.

多个中心圈上，不细说了。

Firstly, oscilloscope control system based on GPIB technique is presented with friendly operation environment to the HIFU system, and it uses multithreading technique in programming to realize real-time recording and display of the signal; Secondly, temperature collection and data recording system is designed, which also could get real-time recording and display of the 16 channel temperature signal, and it's believed to be of great use for further experiments of the HIFU system; Thirdly, multiple ultrasonic phased array's phase shifter is designed,which could provide 8-bit phase control in a range of frequency where the centrical frequency is 1MHZ. Fourthly, the module of serial communication is realized to insure the communication between devices and computer, including both synchronous and asynchronous communication, which enables the system to transfer data reliably and stably; Finally, the module of digital quantity control is accomplished, which provide for upper application the consistent solution to the control of exterior devices via digital interface. It can get or set the devices state using interrupt mode to receive input signal or send output signal.

主要有以下几个方面：设计了基于GPIB的示波器控制系统，给课题的研究工作提供了一个良好的环境，它采用了多线程编程的方法，能够较好的实时显示当前波形并记录数据；设计了温度采集和数据记录系统，能够对16路温度信号进行并行同步的实时采集，用于HIFU剂量学研究中温度场检测和医疗评价；设计了相控阵相位延时电路并且通过调试，满足了课题的相位控制的要求，在中心频率为1MHZ左右的频率范围内都能够达到8-bit相位控制；实现了串口通讯模块，为各项设备与计算机之间的通讯提供保证，它提供同步和异步的通讯能力，使系统能够可靠稳定的传输数据；建立了数字量控制模块，为上层应用程序提供一致的方法使用数字接口控制外部仪器，它使用中断的方式来接收输入或输出设定的开关量信号，从而得到或设定各种仪器的状态。

Objective In order to understand the role of the immune function in the pathogenetic mechanism of multiple sclerosis. Method Antigangliosides GM1 antibody and cephalin antibody in serum (n=28) and cerebrospinal fluid (n=18) were examind in MS patients with ELISA assay.

目的 探讨多发性硬化的免疫发病机制方法采用ELISA方法测定多发性硬化患者活动期血清(28例)和脑脊液(18例)的GM1抗体、脑磷脂抗体和髓鞘碱性蛋白。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。