Usually, oil supply system is of oil-filtration function, which could only function in its self-circulation and the filtration of regenerator and oil recharge is beyond its operation scope.
虽然通常抗燃油供油装置本身带有滤油功能，但其只能参与供油装置内油的自身循环，无法满足再生和补油的需要。
Thrust bearing adopts self pump outer circulation cooling system.
推力轴承采用自身泵外循环冷却系统。
A new kind of high efficient self evaporating circulation rotating heat pipe cooling technique for the rotor of a continuous mixer has been proposed, and simulated test has been investigated.
提出一种新型高效自蒸发循环旋转热管冷却技术来冷却连续混炼机的转子，并进行了模拟试验研究。
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