Extruded magnesium anode are mainly used inwaterboiler,heatexchanger,vapourater,boiler,etc.lt has pro-perty of softingwater,de-dirtresidual,enlong the usinglife,span.

挤压镁阳极应于热水器、换热器、蒸发器、锅炉等设备，有软化水质、排污除污、延长机使等优点。

Lambency floodlight: Tall, service life grows efficiency of high grade lambency lamp glow.

优质的柔光灯发光效率高、使长。

The optimum operating parameters is the important way to improve seal performence of pump valve and to prolon...

因此，优化泵的工作参数是提高泵阀的密封性能、延长其使的重途径。

It is vibrating caulking forming by good quality binder.Good thermal conductivity,high compressive resistance,high anti-heat shocking ,unattackable,abrasion resistance,long service life.

采优质结合剂，经振动密实成型，热导率好，耐压强度高，高抗热，耐侵蚀，耐冲刷，使长。

On the other hand, improving the serving environments，such as optimizing the furnace’s structure, regulating manhandle, etc. increase of service life.

另一方面，改善使环境，如通过炉型改进优化，规范人为操作等措施，以提高其使。

Technique of protection insullac of printed circuit board (PCB) has a strong impact on service life of electronic devices in ships.

印制板的三防绝缘处理对舰电子设备的使有很大的影响,本文讨印制板三防绝缘漆喷涂工艺的一些改进。

Model C31 Meters are multirange instruments and a plug-in type switch is used for range change-over,so for the sake of easy operation.

C31型直流电表是磁电系张丝支承指针指示可携式电表,仪表具有良好的防颠性能和较高的灵敏度及使.

Backwashingable filter can blow down at any moment and backflush the filter without pumping off,which improves the application effect,reduces the cost and elongate the working life.

可反清洗过滤器在不停泵的情况下随时排污和对过滤层进行反清洗作业,提高了使效果,降低了使成本,延长了使。

Pot door is sealed up with gasing type silicon rubber , is sealed and reliable , the length of service life is changed per 3 years one time.

锅门采充气式硅橡胶密封，密封可靠，使长，每三年更换一次。

This design also features an energy saving mode allowing you to control the LED brightness to lengthen battery life and is available with a black or silver alumite finish.

这一设计还具有节能模式，让您来控制LED亮度来延长电池的使，并提供了黑色和银色铝氧化完成。

The main reason that causes early failure of glared tile die block is found through analysing.The analysing has some guiding functions for ingrowing using life of the glazed tile die block。

通过对釉面砖模板过早失效分析,从中找出引起失效的原因·对提高其使有一定的指导作。

This paper is described to draw tungsten wire with ZTA precision ceramic wortle at a high temperature, The profiles of tungsten wire and mould hole and the relation between them are researched.

阐述ZTA精密陶瓷拉丝模在高温下拉制钨丝的过程，研究了钨丝和模孔表面的状况及两者间的相互关系，讨论了拉丝模的使及其拉丝磨损机理。