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灌区灌溉定额统计表 表4.3 序号年份双季稻单季稻频率（）说明 11967333.13197.733.851、按双季稻计算频率 21973386.50152.247.69 31970393.50165.2811.54 41958394.48138.8515.38 51957408.16128.5219.23 61969424.54126.6923.08 71979424.81162.1426.92 81977431.74182.2830.77 91965455.45275.3634.62 101968461.84137.5038.46 111959464.52176.2542.31 121975473.16249.2446.15 131972476.74351.0950.00 141980491.31268.0253.35 151961493.66284.7557.69 161974498.16193.3961.54 171976501.56247.665.38 181956513.07235.3769.23 191962538.47248.3773.08 201971542.33272.0576.92 211964587.88326.1880.77 221960596.90254.5684.62 231978617.56274.3688.46 241966623.42300.8192.31 251963638.13297.7996.15
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