描写灾难的英文作文120词左右

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  • Typhoon level

    According to the China meteorological administration "concerning the implementation of tropical cyclones GBT level national standard" 19201-2006 notice,tropical cyclone press center with maximum sustained winds near the ground is divided into six level:

    Name attribute

    Super typhoon (Super TY) near the bottom center maximum average wind speed p 51.0 m/s,namely,16 level or above

    Phili ines (STY) bottom maximum average speed near the center 41.5-50.9 m/s,namely,14-15 levels

    Typhoon (TY) near the bottom center maximum average speed 41.4 m/s 32.7 -,i.e.,12-13 level

    Strong tropical storm (STS) near the bottom center maximum average wind speed 24.5-32.6 meters per second,namely wind 10 or 11 grade

    Tropical storm (TS) near the bottom center maximum average wind speed 17.2-24.4 m/s,namely wind 8-9 level

    Tropical depression (TD) bottom near the center.The most