物质是由大量分子组成的,而这些分子又处于不停地做无规则运动之中。分子的这种运动与温度有关,温度越高运动越剧烈,所以我们又将它称为热运动。生活中,撒上盐静静地放置一段时间的鸭蛋会变成咸度适中且均匀的咸蛋;炒菜时拌上精盐鸡精等佐料随意翻炒几下就炮制出一道美味;早晨洗涤后湿淋淋挂出去的衣服傍晚就干爽了;施肥后茁壮生长的瓜果蔬菜花草树木……无一离得开分子热运动。 The material is made up of a large number of molecules, and these molecules are constantly doing random movements. Molecules of this movement and temperature, the higher the temperature the more intense exercise, so we call it hot movement. Life, sprinkle with salt quietly place the duck for a period of time will become moderate salt and salty eggs; stir-fry when mixed with salt and chicken essence and other spices stir fry a few to concoct a delicious; morning after washing wet Lingerie hanging out in the evening dry; fruits and vegetables after the fertilization of vegetables, flowers and trees ... ... no one to open the sub-hot exercise.