It is the first time to research into the identification problem of major hazard source concerning widespread mined-out area instability systematacially.
首次对大面积采空区失稳的重大危险源辨识问题进行了系统研究。
The identification of the central fringe is a critical problem for the broadband source interferometer in practical application.
中心条纹不易分辨是宽光谱干涉仪应用的一大难点。
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