• 按此计划

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undertaking-starting education创业教育Underdetermined blind separation欠定盲分离Undersea Instrumentation Chamber水下检测仪器室understorey natural regeneration林下天然更新under high temperature condition高温环境下under the jurisdiction of degree隶属度under-developed western region西部不发达地区underwriting of government bonds承销公债Underdeveloped mountainous areas欠发达山区underbalanced drilling equipment欠平衡钻井设备