求翻译：图7证明了以上结论，全球在1980年变暖以后，长江中下游地区为强的正异常区，即降水偏多；而华北南部地区、渤海湾地区和华南地区为显著的负异常区，即降水偏少；东北地区大部为正异常，即降水偏多。在我国东部地区呈现出“－＋－”的分布型。是什么意思？

Figure 7 that the above conclusion, global warming after 1980, the Yangtze River region of strong positive anomalies, that is more rainfall; and southern North China, the Bohai Bay region and southern China as a significant negative anomalies, ie rainfall; positive anomalies over most of the Northea

Figure 7 shows that the above conclusions in 1980, global warming, the middle and lower reaches of the Yangtze region after the strong are abnormal zone, i.e. rainfall in the south; the north and the South China region, and the Bohai Bay were a significant and negative abnormal zone, i.e. low precip

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7 proved the above conclusions world in 1980 after warming, strong positive anomalies in Yangtze area, precipitation; southern North China, Bohai Bay region and South for significant negative anomaly area, less precipitation; large positive anomalies in Northeast, precipitation. In the East of China

Figure 7 demonstrates the above conclusion, after global warming in 1980, is a strong middle and lower reaches of the Yangtze River, is an exception, that is, precipitation on the high and South, the Bohai Bay area in North China and South China as a significant negative, that is, low precipitation;