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第1期剑齿象系统发育的探讨…………………………………………………………陈萍(1)模型优适度辨识含水层补给进口的原理、方法和应用 ……………………………………………………………………魏建德曾雅京(9)浅论综采放顶煤采煤法在我国的应用与发展…………………………………
The first phase of the development of the sword tooth system .................................................................. Chen Ping (1) model optimal fitness identification aquifer recharge import principles, methods and Application ........................................................................................ Wei Jiande Zeng Yajing (9) Shallowly discusses the application and development of fully mechanized top coal caving method in our country ...... .................................