基本解释[冶金工程技术]三次轴英汉例句双语例句A molecule cannot have a three-fold axis and a four-fold axis in the same direction.一个分子不能在同一方向上有一个三重轴和一个四重轴。three-fold axis更多例句词组短语短语three -fold symmetry axis 三次对称轴线three-fold axis更多词组专业释义冶金工程技术三次轴