There is a line in China called the 15-inch isohyet. 毛泽东通过把中国封锁起来以避免任何发展并清算与外国商人合作的阶级来解决这一问题。
For professionals and people with meteorological background, please click the following hyperlink to see the isohyet chart. 对气象有认识的人士及专业人员,请按以下的超连结,观看等雨量线图。
For a brief background information of the isohyet chart, please 如想了解等雨量线图的背景资料,请