以下为句子列表：
英文: By means of measuring the difference in physical characteristic of rock body we could predict the geological condition that the gas power composes in, By means of measuring the position in three dimensional space we could determines the security thickness
中文: 通过测量岩体物性差异预测瓦斯动力赋存的地质条件，通过测定物性差异体的三维空间位置可确定采矿作业的安全岩体隔离厚度，等等。
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英文: The arc physical characteristic of mixed gases (Ar+He+CO2) and its effects on weld shaping were discussed.
中文: 摘要采用钨极氩弧焊对不同比例氩－氦－二氧化碳混合气体的电弧物理特性及其焊缝成形进行了实验。
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