[电] 动态消光比 extinction ratio: 吸光比; 消光比; 消减比率; 消声系数dynamic equilibrium ratio: 动态平衡比dynamic gain ratio: 动态增益比dynamic stiffenss ratio: 动刚度比; 运动部件悬挂动刚度dynamic stiffness ratio: 动刚度比下载手机词典可随时随地查词查翻译