以下为句子列表：
英文: Abstract: Based on the site actual measurements, the inversion analysis on the d estroy range of roof and floor by the combined mining of thin seams was made by using numerical modeling.
中文: 文摘:以现场实测结果为基础，利用数值模拟与反演方法分析了薄煤层联合开采的顶、底板破坏范围。
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英文: Abstract: Causes for porosity occurrence in welding seams were investigated by means of statistic analysis of the porosity degree of welding seams of the submerged arc weld spiral pipes made with X65 and Q235 steels from different works and mating weld ma
中文: 文摘:通过对不同厂家生产的X65级和Q235钢材与不同的焊接材料相匹配所生产的螺旋埋弧焊管焊缝内的气孔进行统计分析，并从钢材中氧含量的多少及其焊接材料匹配的不同，来研究焊缝中气孔产生的原因。
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英文: And when you are upset they stand by you, when you are in a good mood they happily bask in that moment, and when the world seems to crumble at the seams they scurry to patch it up.
中文: 还有，当妳失意时他们会陪在妳身边，当妳心情愉快时他们也会感到快乐，当妳眼前的世界即将崩毁时，他们也会立即为妳填补。
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英文: Any severe deficiency of welding seams surface like cracks, pores, slags is forbidden.
中文: 焊缝表面不得有裂纹,气孔,夹渣等严重缺陷.
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英文: Based on the data of the rare-earth element in coals from coal seams of the Late Permian Liupanshui, Leping, Huangshi and Chongqing coal mining districts in South China, this paper focuses on the discussion of the characters of content distribution, occur
中文: 摘要在华南地区贵州六盘水、江西乐平和湖北黄石矿区以及重庆钟梁山和磨心坡煤矿晚二叠世煤的稀土元素电感耦合等离子质谱分析数据的基础上，系统研究了华南地区煤的稀土元素的质量分数分布特征、赋存特征、配分模式及其地质控制因素。
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