词汇	sanyan period
释义	sanyan period 三燕时期
随便看	OPERATION INTENSIFICATION ON BLAST FURNACE operation interacting operation interface operation-interface operation interface command operation interval operation in three shifts Operation investment operation in warehouse operation in water supply operation in winter operation in yard Operation Iraqi Freedom operation irregularity operationism operationisms operation isolation Operation is simple and reproduceable operationist operationists operation item operation items Operation Ivy Cyclone operation Jaboulay's operation job card