The result of this drying method and its existing problems are given.
给出了此种干燥法的结果及存在的问题。
Finally, existing problems and future research directions are given.
最后，给出存在的问题并预测了发展趋势。
And some existing problems are put forward.
并提出了存在的问题。
Finally, existing problems of the system and further improvements have been put forward.
最后提出了系统中存在的问题和需要进一步完善的工作。
This paper researched the existing problems and the reason of tax collection and management system.
本文分析了目前税收征管体制存在的问题及其原因。
Now what is on top of our mind is the existing difficulties and problems.
现在我们看得更多的是困难和问题。
But, QQ, and other existing chat program also exist great problems.
但是，QQ等现有的聊天程序也存在着很大的问题。
Meanwhile existing problems of the present law are becoming more and more obvious.
与此同时，现行《残疾人保障法》中存在的问题日益凸显。
Meanwhile existing problems of the present law are becoming more and more obvious.
与此同时，现行《残疾人保障法》中存在的问题日益凸显。
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