第1个回答 2010-12-04
形成雷雨云要具备一定的条件,即空气中要有充足的水汽,要有使湿空气上升的动力,空气要能产生剧烈的对流运动。春夏季节,由于受南方暖湿气流影响,空气潮湿,同时太阳辐射强烈,近地面空气不断受热而上升,上层的冷空气下沉,易形成强烈对流,所以多雷雨,甚至降冰雹。;Forming cb must have certain conditions, namely the air to have plenty of water vapor, want to have the wet air rises motivation, air can produce vigorous convection movement. Chun xia season, because by southern level warm-moist air flow affect and damp, at the same time, the surface solar radiation strongly heated air continuously increased, and the upper air cools sinking, easy to form strong convection, so much the thunderstorm, even with hail)(冬季由于受大陆冷气团控制,空气寒冷而干燥,加之太阳辐射弱,空气不易形成剧烈对流,因而很少发生雷阵雨。但有时冬季天气偏暖,暖湿空气势力较强,当北方偶有较强冷空气南下,暖湿空气被迫抬升,对流加剧,就会形成雷阵雨,出现所谓“雷打冬”的现象。气象专家还说,雷暴的产生不是取决于温度本身,而是取决于温度的上下分布。也就是说,冬天虽然气温不高,但如果上下温差达到一定值时,也能形成强对流,产生雷暴。冬打雷在中国很少见,但在加拿大多伦多的冬天就经常出现 ;Winter because from mainland a controls, air cold and dry, together with the solar radiation is weak, air is formed not easily acuteness convection, so seldom occurs thunder storm. But sometimes the winter weather slant warm, warm air force strong, when the northern accidentally have strong level warm-moist air cold air south, forced to rise, convection intensifies, can form the thunder storm, appear alleged "rem hit winter" phenomenon. Weather experts also say, the thunderstorm is not generated depends on temperature itself, but on the temperature distribution of fluctuation. That is to say, although the winter temperature is not high, but if the upper and lower temperature reaches a certain value, also can form strong convective, produce thunderstorm. Winter thunder in China are very rare, but in Toronto Canada winter often appear)(空气极不稳定的时候,容易发生强烈的向上对流运动,而形成高耸的积雨云,云中充满上上下下奔窜的水汽,就会产生静电,云的上端会产生正电荷,云的下端会产生负电荷,地面又是正电荷,那么,正、负电荷之间有空气作为绝缘体,若正、负电荷间的电压差,大到可以冲破绝缘体的空气,使空气在瞬间膨胀爆炸、发热发光,发光就是闪电,膨胀爆炸发出巨大声响就是打雷。 ;Air extremely unstable, easy occurrence strong upward convection movement, and the formation of towering cumulonimbus cloud filled, remittent BenCuan water vapour, can produce electrostatic, the clouds above will generate a positive charge and the lower end of the clouds will produce negative charges, ground is positive, so, negative and positive between air as a dielectric, if negative and positive, the voltage difference between big enough to break through the air, which makes air insulators in the instant expansion explosion, fever shine, and shine is lightning, inflation explosion made a loud noise is thunder.)挺多哈,我每段每段都标起来了,一个括号代表一段,前面的中文,后面的英文