Similarly for a weapon of lower energy, the effective distance is less, but so also is the rate of ascent of the cloud.

同样，对于威力较低的武器来说，有效距离要小些，云的上升速度也同样小些。

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In cumulus convection ascent rates of several metres a second give a cooling rate of a few degrees per minute.

在积云中，每秒几米的对流上升速度造成的冷却速率为每分钟几度。

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