实验研究结果表明：分子筛催化剂颗粒粒径的大小对壁面传热系数和总传热系数影响大，而对中央区的传热系数无影响。

Experimental results reveal that this diameter exerts strong influence to the overall heat transfer coefficients and that on the wall, but irrelevant to that in the central zone.

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实验研究结果表明：分子筛催化剂颗粒粒径的大小对壁面传热系数和总传热系数影响大，而对中央区的传热系数无影响。

Experimental results reveal that this diameter exerts strong influence to the overall heat transfer coefficients and that on the wall, but irrelevant to that in the central zone.

youdao