undermanvt.使人员配备不足
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
undervollage load shedding电压减载
under esophageal sphincter食管下括约肌
undersea mining technology海底采矿技术
under the cloak of charity披着慈善的外衣
Under the sea wind version凭海临风
Underlying ground pressure下盘地压
underdeveloped rural areas欠发达地区
underhung laminated spring下承式叠板弹簧