基本解释[机械工程]叶轮密封英汉例句双语例句Whole model of impeller clearance and labyrinth seal are built up, and the effect of seals with two sides of impeller to axial thrust is considered fully.建立了叶轮间隙和迷宫密封的整体模型，并充分考虑了叶轮两侧密封对轴向推力的影响。impeller seals更多例句专业释义机械工程叶轮密封