基本解释[机械工程]三维几何模型英汉例句双语例句Three-dimensional tolerance analysis technique based on the vector-loop tolerance model including the geometric feature variations is studied.研究了基于矢量环模型的包括几何特征变动在内的三维公差分析技术。geometric loop model更多例句词组短语短语loop geometric model 针织线圈结构geometric loop model更多词组专业释义机械工程三维几何模型