查询词典 protective device

ZL03 2 354312.The innovations include: automatic self-closing and reliably sealed valve structure: the design of duplex valve clack with pilot valve to tackle the problem of reverse seal structured valve being difficult to be opened; an automatic drain control device to automatically drain the remaining water from the hydrant; protective plate provided between the hydrant body and the valve block to serve as a connection between the hydrant body and the valve block, which is the first one to be damaged when the ground hydrant is clashed, and prevent pulling-off of the whole above-ground part of the fire hydrant, so as to properly protect the main parts from any damage. The self-closing and reliably sealed valve now prevents drain of water, and only the damaged protective plate is needed to be replaced before immediate re-operation. Thus the repair work after clashing is very easy and simple.

其创新点为：具有能自动关闭并可靠密封的阀门结构：采用有先导阀复式结构阀瓣设计，解决反向密封结构阀门开启沉重费力的难题；设计自控排水装置，能自动排除栓体内余水；在栓体和阀体之间设计撞裂板，它既起到连接栓体和阀体的中介作用，又可在地上消火栓被撞击时率先破裂毁坏，并使露出地面的栓体不见整体脱落，有效保护各主体部件的完好无损，而此时阀门的自闭式结构可靠密封阀门阻止水源外泄，修复时只需更换损坏的撞裂板即可立即复位投入使用，使被撞后的修复工作变得十分轻松简便。

A safety monitor and protective device of hoist in local coal mine is introduced.It can indicate the movement and the position of the hoist vessel in the shaft directly,send out a signal slowing down the vessel in time.When the vessel is over-rolled up ,the hoist will be braked automatically and immediately.

文摘：本文介绍了一种地方煤矿提升绞车安全监测与保护装置，能直观地指示提升容器的运动及在井筒中的位置，设置了比较完善的电器保护系统，能及时发出减速信号，当发生过卷时能自动紧急停车。

Group main products are: three-phase modular overvoltage protectors, high voltage current-limiting fuse combination of protective devices, de-excitation of synchronous generator rotor device, large-capacity high-speed switching device, extinction arc and over-voltage protection device, computer system protection device, intelligent switchgear, etc., series, nearly a hundred kinds of products.

集团主要产品有：三相组合式过电压保护器、高压限流熔断器组合保护装置、同步发电机转子灭磁装置、大容量高速开关装置、消弧及过电压保护装置、微机系统保护装置、智能开关装置等七大系列，近百种产品。

Results It was found that occupational injury had significant relationship with age, sex, education, employment pattern, technology, workplace, work changing, wage, family income, enterprise scale, enterprise proprietorship, protective device, operation Rules, and training rules of work safety.

结果 单因素分析结果有显著性的变量为年龄、性别、文化程度、就业类型、技术等级、就业地点、工作变换、月均工资、家庭年收入、企业规模、企业性质、安全防护设备、安全操作规程和安全教育制度。

Results The average age of the patients was raised, the advanced age and high risk patients increased, the therapy time from chest pain onset to emergency visit, from emergency visit to catheter lab and from catheter lab to the first balloon angioplasty shortened, and the use of drug-eluting stent, distal protective device,aspiration thrombectomy catheter, injection of glyceryl trinitrate and diltiazem to the coronary artery became more frequent during recent 6 years.

结果平均年龄增大、高龄及高危患者增多，治疗时间窗中各时间段（发病→急诊科→导管室→首次球囊扩张）均有缩短，其中导管室→首次球囊扩张时间缩短显著；药物支架、远端保护装置、血栓抽吸器、预防性冠状动脉联合注射防止无复流药物在近两年增长迅速，无血流发生率、主要心血管事件发生率及平均住院日显著下降，同时溶栓后介入治疗较直接介入治疗各种严重出血并发症无明显增加。

This design unifies Xinjiang Hua Dianhong the wild goose pond power plant 220kV system actual wiring system to carry on the line protective device the design and the related installation computation.

本设计结合新疆华电红雁池电厂220kV系统实际线路设置进行线路保护装置的设计与相关整定计算。

4 The overcurrent-protective device specified in 27.1 shall not be of the automatically-reset type but shall be trip-free when of the manually-reset type.

27.1(6)中所指的电流过载保护装置，不应是自动型的而应是自由移动的手动型装置。

This paper introduces the selection of the heat relay s type and current its reset mode, points out that connection wire section of rated current of heat relay should be selected according to strict rules it can not take as the protective device of wire short circuit puts forward working environment and temperature of heat relay and matters needing attention of reset after operation.

介绍了热继电器的类型选择、电流的选择、复位形式，指出热继电器的连接导线截面应按规定选择，热继电器不能作为线路的短路保护装置，热继电器的工作环境温度，动作后的复位等注意事项。

Main steam safety valve is the protective device against overpressure in the steam system of nuclear island.

主蒸汽安全阀是压水堆核电站核岛内主蒸汽系统的超压保护装置。

By the end of 14th century,the knights' protective device had become very sophesticated.In addition to weapons,there were heary helmets,armour,and barde for horses,thus making the knights very clumsy in fighting.

到 14世纪末，骑士的防护装备达到顶点，铁叶甲、头盔、武器以及马的铠甲，使骑士的作战显得非常笨重、机械，战马的奔跑速度和耐力也大打折扣。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。