The practice of intellectual property assistance has been aroused the attention of national level, but theoretical research did not start, particularly basic theoretical research is still blank.
知识产权援助的实践工作已经引起国家层面的重视，但是理论研究特别是基础性理论研究尚未展开。
Several great basic theoretical questions of charging system of water resource fee haven't get satisfactory settlement yet, some concrete systems are still a blank in our country.
水资源费征收制度的若干重大基础理论问题尚未得到圆满的解决，有的具体制度在我国尚付阙如。
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