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Therefore, the multi-stage interaction structures with losses and severed structure were more stability for absolute instability and gyrotron backward oscillations. This study presents a nonlinear analysis of typical oscillations, including absolute instability, gyrotron backward oscillation and reflective oscillation. The multi-stage gyro-TWT seem to increase effectively the start-oscillation currents of the absolute instability, gyro-BWO, and reflection oscillation.

所以在本研究分析中,藉由了解磁旋行波放大器中的自发振荡物理原因及特性,将有助於高功率放大器的设计,并且引用非线性程式进行磁旋行波放大器稳定分析,并且采用兼具隔离管及散布式损耗结构的磁旋行波放大器,同时提升绝对不稳定、磁旋返波振荡及反射振荡的稳定性能有效提升磁旋行波放大器输出功率和频宽。

Nine super sweet corn inbred lines with abroad germplasm T1, T2, T3, M1, M2, M3, R1, R2, R3 were selected as tested lines, and original inbred lines B, C, D, 6, D2 as testing ones in this examination. 45 crosses were made by means of incomplete diallel method, and the genetic parameters of the groups and the combing ability of 10 traits, growth period, plant height, ear height, ear length, ear diameter, core diameter, baldhead length, rows per ear, kernels per row, single ear weight were tested and analyzed by means of NCⅡ design.

选用具有国外血缘的T1、T2、T3、M1、M2、M3、R1、R2和R3共9个超甜玉米自交系做被测系,以原有5个自交系B、C、D、6和D2做测验系,采用不完全双列杂交法组配出F1杂交组合45个,对生育期、株高、穗位高、穗长、穗粗、芯粗、秃尖长、穗行数、行粒数、单穗重10个性状按NCⅡ设计的原理和方法进行配合力测定与分析,并估算群体遗传参数。

We looked at how to break up a text buffer into lines and segments for purposes such as syntax highlighting and line folding, and examined the distinction between logical and visible lines.

我们研究了如何把一个文本缓冲器拆分成目标行或数据段(例如语法高亮、可折叠行),以及检验逻辑行与可视行的区别。

The non-uniform slow wave structures of the broad-band high power TWTs are studed for the suppression of the backward-wave oscillation and second harmonic amplification. and for the interaction efficiency improving.

本文主要利用非均匀输出线路来研究宽带高功率行波管的返波抑制、二次谐波抑制和提高电子互作用效率的问题,旨在通过本论文的研究,为宽带高功率行波管的研制提供可靠的理论依据和设计指导。

The caculation results of Pubugou high rockfill dam under the action of design earthquake travclling wave show: in few cases, the seismic response under travelling wave input is less than that under routine input; but in many cases, the former surpasses the latter, and the rate of increase of few components has doubled and redoubled; the strengthened areas of seismic response under the action of travclling wave are in the direction which travelling wave has gone; compared with acceleration and displacement, dynamic stress is even more sensitive to travelling wave input; compared with the direction along river, the effects of travelling wave in the direction cross river are even more intense.

结合瀑布沟高土石坝在设计地震行波输入下的研究表明,行波反应少数情况下弱于常规反应,而大多数情况下则有所增强,个别指标甚至有成倍的增加;行波反应强化区均出现在去波向;与加速度和位移相比,动应力反应对行波输入更为敏感;与坝体顺河向行波效应相比,横河向则更加强化。

In June 2009, Moog took over another important production facility at Gao Hang Shanghai, which was part of global acquisition of a global leading wind turbine pitch control system supplier.

二零零九年六月,穆格在一次收购中获得了位于上海浦东高行的另一工厂,高行工厂属于穆格全球并购的一家业内领先的电动变桨控制系统供应商的一部分。

The relation between row distance and height of seedling was analysed accordingto the variation of shade length and bearing of seedlings with motive orbit of the sun.

该文运用了苗木影长及其方位随太阳运动轨迹而变化的基本规律,分析了东西行向与南北行向情况下,行距与苗高的相对关系,结论是,同等面积,且苗木间又互不遮光的条件下,东西行向可排列的行数约比南北行向增加1倍,行距取值为1。

This English translation of Gao's early play and his theoretical essay on modern Chinese drama will not only make the realist play accessible for English-speaking readers worldwide but also reveal the early formation of the playwright's unique theatric creativity and theory.

高行健是2000年诺贝尔文学奖得主,也是一位优秀的前卫实验剧作家。本书译自它的写实主义剧作《绝对信号》。该剧是中国剧作史上头一部只依靠舞台灯光与音效来呈现角色情感的剧作。本书也翻译了他早期关於剧本创作理念的文章,译者并以专文分析高行健的戏剧创作内涵。本书出版的目的是希望将高行健的戏剧创作,推荐给英语世界的广大读者。

We used ITO glass substrate and high purity(99.99%) titanium , put to use sputtering process, add to high purity O2 make it complete the best structure film and the thickness about 1400 . By way of 500℃ anneal could got a better anatase phase, this result could easy reaction with electrolyte to increase electron-transferred. Used as spin casting covering PR on ITO substrate, transferring patterns of array circular shapes on a mask to photography, used optimize temperature and time to hard bake. Finally used HCl to etching underexposed TiO2 area, and acetone to tripper top PR, make it to accomplish pillars shape TiO2 electrode.

本研究使用ITO玻璃基板为底材在以高纯度钛(99.99%)为靶材,利用溅镀方式通入纯氧使其行成高纯度TiO2镀於ITO基板上行成厚度约1400的薄膜,且经500℃高温烧结使其行成最强的锐钛矿结晶相,此晶相有利於与电解液反应进而增加电子的转移,提升太阳能电池最佳的效率,在以旋转涂布方式铺上光阻,以矩阵排列的圆孔光罩曝光、最佳的温度及时间来烘烤、显影后;使用盐酸以等向性湿蚀刻方式蚀刻未曝光之TiO2区域,最后利用鈵铜将最上层光阻去除,使其行成柱状TiO2的电极。

With the uprising movement of Chinese railways and progress of electric railroad, the small tonnage full hydraulic railway crane becomes more urgently needed for development with characteristics of fast speed self-propelled running and high speed in train formation, hence, the high level requirement is resulted in terms of train formation and self-propelled running speed of railway crane. For 20t universal railway crane, features such as running with the load and weight lifting due to high hauling capacity are required besides hook lifting, bucket grabbing and magnetic panel lifting.

随着我国铁路事业的不断壮大,电气化铁路的发展,开发小吨位的自力走行速度快、回送速度高,能满足电气化线路的立杆作业的全液压铁路起重机迫在眉睫,对铁路起重机的回送和自力走行速度有了更高的要求。20t多功能铁路起重机,即具有吊钩、抓斗、磁盘吊3种功能外,还具有一定带载走行以及因牵引能力大也可作为吊车机使用。

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Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来,英国,在此地早期居住的是凯尔特人,已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。

The almost sure central limit theorem is a pop topic of the probability research in recent years,because it has many actual applications in the random analogue.

中文摘要:几乎处处中心极限定理是近几十年概率论研究的一个热门话题。它之所以引起人们的注意是由于它在随机模拟方面的实际应用参见Fisher