durations持续期
durationn.持续时间;期间
Duration of risk on ship承担船舶风险责任的期间
duration of the sunshine日照时间
duration of unemployment失业期限
duration of transmission传输时间
duration of prescription[经] 命令(指示, 规定, 法令)有效期间
duration of investigation侦查期间
duration oftyphoon season台风季
duration difference limen时程辨差阈
duration of strong motion强震持时
duration of hospital stay住院期间