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This paper introduces a new type vacuum circuit-breaker by analyzing the current mine flameproof feed switches.

本文在分析国内矿用隔爆馈电开关现状的基础上介绍了一种新型真空断路器，并阐述其作为隔爆馈电开关内装元件的优越性。

This paper introduces a new type vacuum circuit-breaker by analyzing the current mine flameproof feed switch es.

本文在分析国内矿用隔爆馈电开关现状的基础上介绍了一种新型真空断路器，并阐述其作为隔爆馈电开关内装元件的优越性。

The flexure hinge flapper was designed and dynamic analysis was performed, and the maximum flux was evaluated. the natural frequency of the flexure hinge flapper is studied by finite element.

并对这种压电阀所涉及的动力学、流量估算等问题进行了理论上的探讨，并用有限元法的方法分析了压电阀的柔性铰链挡板的固有频率。

The proportional technique of the electrohydraulic and the numeric control technique of the electrohydraulic fill up the blank between the technique of the switch-control and servo-control. It is an important branch in the fluid drive and in the control technique.

电液比例技术和电液数字控制技术填补了传统开关式液压控制技术与伺服控制之间的空白，已成为流体传动与控制技术中最富生命力的一个分支。

PST has been widely used in uncooled infrared focal plane arrays and has involved more interesting.

它是制备铁电薄膜非制冷红外焦平面阵列和铁电微型致冷器的优选材料。

Deluxe Garden gate, engineering and roller shutters of various types of imported motors, electric cover, block electric door motors, remote control alloy folding doors, glass folding door, glass door sensors, car doors and other products.

豪华花园大门、工程及各类进口卷闸马达、电掩、电挡门马达、遥控器铝合金折叠门、玻璃折叠门、感应玻璃门、车房门等系列产品。

B-e and b-c junctions will measure like a diode with the b-c junction reading slightly lower than the b-e junction when forward biased.

发射结和集电结跟二极管差不多，集电结正向偏置时的读数要稍小于发射结。

For the condensation system of gas from top outlet of fractionator, severe corrosion remains happen if the proportion of neutralizer and corrosion inhibitor is not well and the quantity of which is not sufficient.

抑制装置腐蚀的发生还要从腐蚀的机理出发，从各个对腐蚀有影响的环节入手，如电脱盐注水和加热炉注水的质量特别是盐含量，以及电脱盐的操作等。

Retention property is an important factor of reliability for FRAM application also.

铁电材料保持特性也是铁电存储器应用可靠性的一个重要因素。

This system makes use of the free energy from the soil to provide heating. It can produce more than 4 kw ﹒ h heat effect costing only 1 kw ﹒ h electricity. Therefore, the running cost is low.

在采暖过程中，系统主要利用了免费得到的土壤中的热量，可以实现每消耗1度电，即可得到4度电以上的热效果，因此运行费用很低。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。