《国内造船厂规则》
home dockyard regulations
国内、外应用现状
application situation at home and abroad
国内安全管理规则
national safety management code
国内超声治疗
Utrasonic therapy in China
国内大局
the vital national situation
国内单机容量最大、转速最高的立轴混流式机组选型
vertical mixed flow turbine unit
国内电池信息
Battery information in China
国内电动汽车发展综述
Development of Domestic Electric Vehicles
国内电解铝厂现状
status of aluminum smelters in China
国内电信部
internal telecommunication department