查询词典 vacuum breaker

Diaphragm, Stop Seat and Vacuum Breaker to be molded from PERMEX Rubber Compound for Chloramine Resistance

采用PERMEX橡胶化合技术将隔膜片，止回阀阀座和真空断路阀模压在一个整体内，有利于防止氯胺的腐蚀

Some key part is ameliorated to meet the demands of working. This thesis mainly includes:(1) Analysing the working principle of the spring operateing mechanism, expatiating the character of the mechanism;(2) With the design aim of the spring operating mechanism, accomplishing the design of ZW□-12/630-20 outdoor HV vacuum breaker based on the systemic design theory of the spring operating mechanism, which includes spring mechanism of open-close switch; cam mechanism based on the principle of power balance; buckle-off mechanism with force-minished device; ratchet wheel mechanism with number-increased detent;(3) In the design on the spring operating mechanism for the outdoor vacuum breaker, using the air cushion device with speed controller to ensure the steady working of the spring operating mechanism;(4) Accoding the problem of daily maintenance for HV circuitbreaker, giving some effective steps of daily maintenance.

论文工作主要包括以下几个方面：(1)从真空断路器弹簧操动机构的功能原理出发，详细分析了该机构的工作原理，阐述了机构工作的基本特性；(2)根据工程实际提出了真空断路器弹簧操动机构的设计目标，在系统分析弹簧操动机构设计理论的基础上，完成了ZW□-12/630-20型户外真空断路器弹簧操动机构的设计工作，其中包括真空断路器弹簧操动机构的分合闸弹簧机构的设计；以输出力特性曲线设计机构理论演化出的功率平衡原则为基础的凸轮机构的设计；带有减力机构的滚动摩擦扣结方式的脱扣机构设计；根据实际情况增加了棘爪数量的棘轮机构设计；(3)在真空断路器弹簧操动机构的设计中，引入了速度控制模式空气缓冲器，对惯性负载起到了良好的自动缓冲效果，从而保证了真空断路器弹簧操动机构稳定、有效地运行，保证了真空断路器的动作质量；(4)针对目前真空断路器运行过程中存在的问题，提出了有效的日常维护措施。

A hose connection type anti-siphon vacuum breaker shall be installed where indicated on the plans to prevent the back siphonage of contaminated water.

软管连接类型的反虹吸真空断路阀应该安装在计划标注的防止污染水反虹吸的地方。

Upgrade Capabilities: With their smaller size, vacuum breaker retrofits may make it possible to upgrade switchgear interrupting capabilities in the existing structure.

升级能力：以他们的更小的大小，真空破碎机式样翻新也许使成为可能升级互换机中断的能力在现有的结构。

This article introduces the application of BGP 9L —6A mine flame proof vacuum breaker used in coal mine,analyzes the excellences and defect of the breaker,points out the problem existing in use,dissertates the improvement method aganst the problem.

介绍了BGP9L— 6A 矿用隔爆真空断路器在煤矿井下的使用情况，分析了其优缺点及存在的问题，并提出了改进方法。

High Back Pressure Vacuum Breaker Flush Connection, Spud Coupling and Flange for 1 1/2 Top Spud

回路高压真空断路阀冲水连结装置，和用于1 1/2英寸上部进水口的进水口连结和法兰。

High Back Pressure Vacuum Breaker Flush Connection , Spud Coupling and Flange for 1 1/4 Top Spud

回路高压真空断路阀冲水连结装置，进水口连结和用于1 1/4英寸上部进水口的法兰。

"High Back Pressure Vacuum Breaker Flush Connection with One-Piece Bottom Hex Coupling Nut, Spud Coupling and Flange for 1 1/2"Top Spud

回路高压真空断路阀冲水连结装置，带一体化底部六角连结螺母，进水口连结和用于1 1/2英寸上部进水口的法兰。

The study also showed that vacuum breaker maintenance can easily be handled by one technician.

这与被提供了为空气或油开关的灾难性故障是相反的。和在所有系统。

The study also showed that vacuum breaker maintenance can easily be handled by one technician.

研究并且表示，真空破碎机维护可能由一位技术员容易地处理。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了