Aircraft spare parts, a special materials reserve, are hard to forecast demand-time and demand-quantity by normal forecasting theory.

航材是一种特殊的物资储备，运用一般预测理论很难对其需求时间和需求量进行预测。

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Increasing the accuracy of forecast in normal times (knowing whether the economy next year will grow at 2.4 per cent or 2.5 per cent) is far less important than knowing the risk of a major recession.

提高正常时期预测的准确性——知道明年的经济增长率是2.4%还是2.5%，远没有了解重大衰退的风险那么重要。

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It can determine equipment whole or local is in normal or abnormal, found early fault and the reasons, and can forecast fault development trend.

它可以确定设备整体或局部是正常还是异常，能早期发现故障及其原因，并能预报故障发展趋势。

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Most worryingly, farm growth is at a below 2% and a below-normal monsoon has been forecast.

BBC: Is the India growth story over?

The meteorological department has forecast "normal" rainfall this monsoon season.

WSJ: Monsoon Rains Arrive Over India's Mainland

Although the snowfall was light into Friday afternoon, the forecast appeared to shape the normal activities of New Yorkers.

WSJ: Officials Urge Caution as Snow Starts Falling