在预测模型之后被完成，预测被对这些期数有益并且与已知的历史价值相较。
After the forecasting model is completed, forecasts are made for these periods and compared with the known historical values.
因此，我们修正了韩国2009年GDP的预期数据，我们现在认为今年韩国GDP仅会比去年略微下调1.8%，而不是先前预测的会下调4.4%。
As a result, we have revised up our real GDP forecast for 2009 to a relatively small fall of 1.8% (compared to our previous forecast of a 4.4% decline).
在万宁地区初期腐蚀率较低，但一定时间后腐蚀率呈上升趋势，耐候钢的腐蚀可以采用短期腐蚀数据预测长期结果，对于其他钢种则不能用短期数据预测长期腐蚀情况。
Results showed that the long-term atmospheric corrosion rule of carbon steel and low alloy steel in Jiangjin can be forecasted through 4 yeas atmospheric corrosion data.
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