组合法是一种简便易行的创造技法。组合法中有自组法，自组就是几个相同的事物依次相连形成新事物。如工业上的发动机，由刚开始的一个汽缸，逐渐自组成双汽缸、四汽缸、六汽缸、十二汽缸等；农业上耕地的铧犁，由刚开始的单铧犁，逐渐自组成双铧犁、四铧犁、八铧犁等；军... Combination method is a simple and easy to create techniques. There are self-organizing law in the combination of law, self-group is the same thing in turn connected to form several new things. Such as the industrial engine, from the beginning of a cylinder, gradually self-composed double cylinder, four-cylinder, six-cylinder, twelve-cylinder; plow agricultural plow, from the beginning of a single-plow, Plow, four plow, eight plow plow, etc ... Army ...