机读格式显示(MARC)
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- 200 1_ |a 注水压裂弱化控制煤层坚硬难冒顶板技术 |f 宋永津编著 |A zhu shui ya lie ruo hua kong zhi mei ceng jian ying nan mao ding ban ji shu
- 210 __ |a 北京 |c 煤炭工业出版社 |d 2002.9
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