Perhaps another lesson to note is that splitting objects into too many fine-grained traits can obscure the order of execution in your code!
也许另外一个教训是，把对象分拆成太多细密的traits可能会值得你代码的执行变得复杂费解。
2
Mix the foam asphalt mixture on the condition of different cement content and adding order, do splitting strength test and analyze the influence of the cement addition on its moisture sensitivity.