例句與造句

1. With the improvement of loading grade and extension of service year , the structural disease in bridge increases continuously . as a result , the loading capacity of bridge degrades gradually and the function of service deteriorates year by year
   隨著交通荷載等級(jí)的不斷提高，橋梁服役年限的不斷延長，橋梁結(jié)構(gòu)的病害不斷增多，橋梁結(jié)構(gòu)的承載力不斷降低，使用性能逐年惡化。
2. It's difficult to find structural disease in a sentence. 用structural disease造句挺難的