基本解释[机械工程]扩径旋压英汉例句双语例句This article has described expanding method for repairing the concave retaining ring caused by the hydraulic bulging.详细介绍了用扩冲法对液压胀形出现凹形的护环进行修复的方法。词组短语短语bulging expanding 胀颈成形专业释义机械工程扩径旋压