基本解释[机械工程]轴系临界转速英汉例句双语例句Thought that the generator rotational speed had achieved nearby two time of critical rotation speeds, the shafting has had the oil film vibration.认为发电机转速达到两倍临界转速附近，轴系发生了油膜振荡。critical speed of shafting更多例句专业释义机械工程轴系临界转速