1) roof prevent and cure
顶板防治
2) prevention of roof water
顶板水防治
3) technology controlling roof water
顶板水防治技术
4) prevention and control of breaking board
断板防治
5) prevention for caving casualty
冒顶灾害防治
6) prevention and treatment of face cracks
面板裂缝防治
补充资料:草莓枯萎病防治技术
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