最后，用前期环流特征量为因子建立了祁连山主区层状云频率的预测模型。

Finally, a forecast model of frequency of stratiform clouds in Qilian Mountains was built based on the circulation characteristic factors.

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又由于相对远离主山脉，且无明显的山谷形态，该冰川区局地环流不发育，整个观测期间均受制于东南和南风控制之下。

Away from the main range of Mt. Xixiabangma and without clear incised valley, local circulation is insignificant and the whole glacier were covered by southerly and southeasterly.

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主泵提供足够的强迫循环流量，以保证有充分的热传递能力。

The reactor coolant pump provides sufficient forced circulation flow to ensure adequate heat transfer.

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