例句與造句

1. 3 . by considering the enumerative problem of animals resulting from the stacking of labeled squares on a single staircase , we introduce the new concept of the fibonacci - like numbers and lucas - like numbers , and discuss their combinatorial properties and the computed method of mean values and mean - square for this enumerative problem
   通過(guò)考慮單階梯上標(biāo)號(hào)方塊latticeanimals的計(jì)數(shù)問(wèn)題，引入了一類fibonacci - like數(shù)與lucas - like數(shù)的新概念，討論了它們的組合性質(zhì)，得到了此計(jì)數(shù)問(wèn)題的均值與均方差的計(jì)算方法。
2. It's difficult to find method of mean value in a sentence. 用method of mean value造句挺難的