查询词典 antenna switch

Therefore, we utilize optical switch to switch over two routes P1 and P2 which are normal feeder fiber P1 and protecting fiber P2. Signal pass P1 and P2 and through 2X2 coupler, splitter, and 2X1 coupler into the drop fiber. Finally pass through WDM coupler and filter into ONU.

传输时利用光开关切换成两路路径P1和P2，分别为在正常下的P1馈线光纤和发生错误时切换成P2保护光纤，再经2X2耦合器、分歧器和2X1耦合器，进入终端光纤，最后经分波多工耦合器和滤波器后进入光网路单元。

The load switch with earth switch can bear short-circuit current.

配装接地开关的负荷开关，可以承受短路电流。

First, the dissertation summarizes the properties, developing state and application fields of BLDCM, then its fundmental structure; operation principle and control strategy is also presented. On the base of roundly analyzing all kinds of the drive motor in electromotion type railway switch, BLDCM is proposed to replace the formerly traditional DC motor in railway switch. Second, the whole design scheme and key technology of control system is put forward based on analyse of the technical parameters and requirements.

首先，论文介绍了无刷直流电动机的特点、发展和应用概况，分析了稀土永磁无刷直流电机系统的基本构成、工作原理和控制方法；在对目前各种电动转辙机驱动电机分析的基础上，提出将稀土永磁无刷直流电机用于铁路转辙机，以替换原有的串励有刷直流电动机。

Fly key Founded in 1985, are National Machinery Industry, the Ministry of Electric Power Industry Ministry sentinel production enterprises, specializing in the production of a variety of voltage fuses, surge arresters, isolation switch, load switch, a portable short-circuit grounding line, high-pressure acoustic ray electroscope, high pressurerod and other products.

衡水飞键电力器材有限公司创建于1985年，是国家机械工业部，电力工业部定点生产企业，专业生产各种电压等级熔断器，避雷器，隔离开关，负荷开关，携带型短路接地线，高压声光验电器，高压拉闸杆等系列产品。

Under the existing condition of the lab, a lot of experiments, analyzing and improving are made. Now, the problems in photoengraving, sputtering and diffusion etc. have been solved elementally. Excellent technological parameters are achieved and 2×2 LiNbO3 waveguide optical switch has been fabricated successfully. At the end of this paper, the losses of 2×2 LiNbO3 waveguide type optical switch are analyzed. The testing system is established. The V-grooves used for coupling have been designed.

我们在现有的实验条件下，经过反复实验，分析和改进，克服了光刻，溅射，扩散等各个阶段中的难题，总结出各部分最优的工艺参数，制备出了2×2定向耦合器型光波导开关，在本文的最后对制备出的光波导开关的各种损耗进行了分析，建立了测试系统，对光开关进行了通光测试，并对本2×2定向耦合器型光波导开关以后的耦合封装V型槽进行了设计。

Musical shoe sole contains respectively printed circuit board, batteries volume adjuster and small-sized loudhailer, in shoe all around bend cant still is installing 4 key board switch, ordinal the key that steps on next shoes, can give out ""," come "," rice "," law " noise of enharmonic accord with, children puts on it, when stepping on next key board switch by dance music score, can enjoy the performance of festively singing and dancing.

音乐鞋鞋底分别装有印刷电路板、电池音量调节器与小型扬声器，在鞋子四面倾斜面还安装着四个琴键开关，依次踩下鞋的琴键，便可发出"都"、"来"、"米"、"法"等音符声响，儿童穿上它，按舞曲乐谱踩下琴键开关时，便可欣赏到载歌载舞的表演。

Turn off the exhaust switch, press the button and wait for vacuum vacuum to a specified amount of time, press exposure start button, open the exsufflation switch.

敞开排气开关，按不静抽真空按钮，待真空抽到必定工夫后，按曝光开不静按钮，敞开排气开关排气。

Will manually, auto-switch to automatic, so that exsufflation switch exsufflation State, press the vacuum button T1, at which point the exhaust from the aliquation exposure done automatically.

不兵手不静、自不静开关不扎到自不静状况，让排气开关处于排气状况，按不静抽真空按钮T1，此时从呼气曝光排气自不静达成。

"When you switch on the light in the bathroom , the extractor fan switch es on ."

当你打开浴室里的灯时，换气扇就启动了。

If a switch contact mechanism is built so that it can be actuated by the application of a magnetic field, and an electromagnet coil is placed in the near vicinity to produce that requisite field, it will be possible to open and close the switch by the application of a current through the coil.

如果一个开关联络机制，是建立，以便它能够驱动的应用磁场和电磁线圈放置在附近一带生产的必要的领域，将有可能打开和关闭交换机的应用电流通过线圈。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。