This paper analyzes the problems that appear easily in the open-self circulation in university library such as book disorder, book stealing, and book damaging, etc.
对高校图书馆图书开架流通过程中容易出现的图书乱架、图书被窃、图书破损等问题进行了分析，并提出了相应的解决办法。
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。
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。
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