In accordance with design structure simple,strength low of tape conveyer tail parts,designs again and improves conveyer tarl structure,to suit many kinds of type coveyer,at same time,to raise the convey capacity,reduce examine and repair rate,increase use life.
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The use of advanced core, increase the life cycle, in order to achieve high security and economy of the dual objectives.
采用先进的堆芯，增加寿命期，以达到高安全性和经济性的双目标。
The use of the additives can increase the battery cycle life, charge acceptance, surface area of negative active mass and stabilization of its structure.
使用负极板添加剂可以增加蓄电池寿命，提高充电接受能力，增大负极活性物质表面积并稳定其结构。
In order to reduce the cost and increase the life of portable surface-to-air missile weapon training equipment, it is put forward to use a simulative seeker to replace mechanical gyro seeker.
为了降低便携式地空导弹射击训练器材的生产成本并提高其使用寿命，提出了一种用模拟导引头替代机械陀螺导引头设计方法。
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