以下为句子列表：
英文: It is determined by the characteristics of Chinese coal seams that they are difficult to exploit; this paper analyzes three main stimulation technologies: hydraulic fracturing, displacement of multi-gas and oriented pinnate horizontal well-drilling, which
中文: 此外还分析了目前国内外煤层气增产的3项主要技术：水力压裂改造技术、煤中多元气体驱替技术和定向羽状水平钻井技术。
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英文: Ancient pinnate leaf mimesis in Mesozoic lacewings
中文: 中生代脉翅目昆虫的叶状拟态
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