風ふう力りょく階かい級きゅう

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Meanings

1

wind force scale; Beaufort scale

Technical term used in meteorology and navigation to classify wind strength by observable effects.

。

The weather map shows the wind force scale with symbols.

風ふう力りょく階かい級きゅう12はハリケーンに相そう当とうする。

Wind force 12 on the scale corresponds to a hurricane.