模态框(Modal)标题

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模态框(Modal)标题

在这里添加一些文本
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Study of Open-off Cut Oblique Design and Process of Leveling at the Beginning Mining of Fully Mechanized Working Face
李瑞群
COAL ENGINEERING . 2017, (6): 53 -55 .  DOI: 10.11799/ce201706016

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