underdry干燥不良
underprep.低于;在 ... 下;在 ... 内;在 ... 控制下adv.在昏迷中;在 ... 下adj.下面的;从属的;少于的
under groundwater overdraft area地下水位超采区
undersampling of bandpass signal欠采样
Under-monitoring forced mining监控强采
under-applied factory overhead少分配的工厂管理费用
under supervision of a physician在医师监视下; 遵医嘱
underprivileged college students贫困大学生
under-voltage open phase relay低电压开相继电器
under otherwise equal conditions其它条件都相同时
under proper moisture conditions在适当的潮湿情况下