这一部分是对流域水资源管理的国内外现状的分析。
This part is analysis on domestic and international current situation of basin water resource management.
介绍了彩色等离子体显示的基本特性、国内外现状。
The basic characters, status of color plasma display are introduced.
通过分析结晶器保护渣熔化速度测定方法的国内外现状，提出用坩埚法测定的方法。
By analysing the domestic and international situation of method for measuring mould powder melting velocity, crucible method was brought forward.
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