龙卷风,又称龙卷,是一种猛烈的旋风,一种激烈旋转的空气漩涡。龙卷风移动的长度,一般在几米到180千米之间。当龙卷风到来时,会发出很大的吼声,犹如“千百辆火车在行驶”。龙卷风空气柱的直径,一般为30米到800米。龙卷风有奇特多变的外形,分明的轮廓,行动诡秘的特点和巨大的威力 The tornado, also known as the tornado, is a fierce whirlwind, an intense swirling air vortex. The length of the tornado movement is generally between a few meters and 180 kilometers. When a tornado arrives, it will make a loud buzz, like “a thousand trains are driving”. The diameter of a tornado air column is typically 30 to 800 meters. The tornado has a strange and varied appearance, distinct outlines, conspicuous features and great power.