如何翻译“计算结果表明改变支承刚度可以有效地调整临界转速，但对转子各阶临界转速振型影响不大。”

The caculated result shows that bearing stiffness can adjust critical speed effectively, but it make nearly no effect for the mode shape of critical speed in every level of revolver.
level->阶 revolver->转子 这两个不敢确定,给点分数吧,不要那么小气

The calculations indicated that altering bearing stiffness can regulate critical speed efficiently,but has little effects with rotor critical speed mode shape.
太专业了 不好意思 直译的。