The rainfall in Shandong Province during flood season witnessed an evident change in the year of 1979, after which there was an apparent decrease in the rainfall.
山东省汛期降水在1979年前后发生一次明显的变化，1979年后降水显著减少。
The rainfall in Shandong Province during flood season witnessed an evident change in the year of 1979, after which there was an apparent decrease in the rainfall.
山东省汛期降水在1979年前后发生一次明显的变化，1979年后降水显著减少。
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