动态系数performance: n. 1.执行,实行,履行;完成;实现;偿还。 2.行为 ...absorption coeffcient: 吸收系数attenuation coeffcient: 衰减系数coeffcient of consolidation: 固结系数coeffcient of contingency: 列联系数下载手机词典可随时随地查词查翻译