Yu Bin a brief introduction to the discussion group with the Coal line of basic information, focusing on the situation on the comprehensive utilization of coal enterprises are introduced.
于斌向课题组一行简要介绍了同煤集团的基本情况，重点就企业煤矸石的综合利用情况作了介绍。
Study games, played by Kobayashi Koichi, Yu Bin, Lee Changho, Paek Yeonghun and follow their ideas.
可以学习一下小林光一、俞斌、李昌镐、朴永训的棋谱，体会他们的思路。
Study games, played by Kobayashi Koichi, Yu Bin, Lee Changho, Paek Yeonghun and follow their ideas.
可以学习一下小林光一、俞斌、李昌镐、朴永训的棋谱，体会他们的思路。
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