以下为句子列表：
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: By the analysis of mercury injection data and physical property data of 650 sandstone and carbonate samples collected from Tuha, Liaohe, Shengli, Eerduosi, Sichuan oil ＆ gas field of China and Canadian oilfield, it is found that for porosity rocks, no mat
中文: 本文通过对来自我国吐哈、辽河、胜利、鄂尔多斯、四川和加拿大等地区油气田的650个砂岩和碳酸盐岩样品压汞测试资料及物性数据的分析研究，成功发现了对于孔隙性岩石(无论是砂岩还是碳酸盐岩)，岩石孔隙度和渗透率(特别是渗透率)与岩样不同孔喉大小的体积分布有密切的相关性，并首次建立了储层孔喉体积分布反演预测模型。
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英文: Centrifugal casting，compact structure，free from pinhole porosity and slag，smooth surface and even wall thickness.
中文: 高速离心铸造,组织致密,无砂眼、夹渣，表面光滑、壁厚均匀。
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英文: Different electrolyte solution has different working voltage, with which the coating's thickness, hardness, porosity and protection ability change subsequently.
中文: 研究了4种不同溶液体系对微弧氧化陶瓷膜的厚度、生长速度和硬度的影响。
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英文: Discussion on the Calculation Formula of Open Porosity for Oil-Immersed Paper Facings by Japanese Mitsubishi Cement Bunding Material Company
中文: 论日本三菱水泥建材公司油浸纸基摩擦片气孔率计算公式
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