| 摘要 |
The damage from cyclonic winds is reduced by (1) providing another source of air for the center of the cyclonic wind from outside the system, the air desirably being cooler and denser to minimize the tendency of the air to flow upward; (2) by "plugging" the center of the cyclonic wind to prevent the upward flow of air in the center or the downward flow of air around the inside wall of the cyclonic wind, e.g., by countering the upward flow in the center or by countering the downward flow around the inside of the cyclonic wind flow; and/or (3) by slowing the cyclonic wind directly thus diminishing the flow of air and the ability of the cyclonic wind to form a wind wall.
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