我们的祖国领土面积有多大?960万平方公里这是大家熟知的答案。还有470万平方公里的领海面积总容易被忽略。每每看到中国地图,总有些疑惑,中国的“大肚子”南海离祖国大陆那么远,还是中国的领土吗?原来在中华人民共和国版图中(图(1)),在南中国海里有条由9条断续线组成的U形线,通常称为九段线,线内区域为中国南海。九段线是中国自民国至现在始终坚持的我国在南海的疆域线。今天我们就一起探究这条线的来龙去脉。 What is the size of our homeland? 9.6 million square kilometers This is a well-known answer. There are 4.7 million square kilometers of territorial waters are always easy to overlook. Every time I see the map of China, there is always some doubts about whether the “sea-bellied” South China Sea is so far away from the mainland of the motherland or the territory of China. Originally in the territory of the People’s Republic of China (figure (1)), there was an article in the South China Sea The U-shaped line of nine intermittent lines, commonly referred to as the nine-segment line, is the South China Sea. Jiudai line is China’s boundary line in the South China Sea since the Republic of China up to now. Today we explore together the context of this line.