排空 Traditional form: 排空 Pinyin (reading): páikōng Definitions: to drain out; to empty to discharge (waste gas) into the air to soar up into the sky Characters: 排 - row, rank, file; to eliminate, to remove 空 - hollow, empty, deserted, bare Traditional characters: 排 - row, rank, file; to eliminate, to remove 空 - hollow, empty, deserted, bare