The present state of research on antibacterial glass was described.
介绍了抗菌玻璃的研究现状。
At present, the research about population of Jinn state has not be done.
目前学界关于春秋时期晋国人口总量问题的研究尚是一段空白。
Described the application and the present state of the research for the dulling material.
叙述了消光材料的应用和研究现状及存在的问题。
Described the application and the present state of the research for the dulling material.
叙述了消光材料的应用和研究现状及存在的问题。
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