散热器的合理设计，可以提高发动机的效率，增加其使用寿命。
The perfect design of radiator, not only improve efficiency of engine, but also increase its useful life.
通过大量试验证明，这些结构的设计可靠合理，对于提高钻进速度，增加其使用寿命具有重要作用。
Tests have proved that the above-mentioned structural designs are reliable and contribute a lot to increase in ROP and service life.
该系统增加了混凝土的承载力，这样既减少其变形和开裂，也增加了混凝土的使用寿命。
The system increases the bearing capacity of concrete, reducing its deformation and cracking decreases, thus increasing its life.
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