直到目前为止，对绘画期刊深入而系统的研究成果尚付阙如。
Untill now, there has been few results in further and systematic researches on painting periodicals.
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。
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.
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