例句與造句

1. Based on that , the reason for producing cracks and the calculation must be analyzed . especially the dissertation expounds the contract cracks in out restriction
   基于此，首先分析了裂縫產(chǎn)生的原因及裂縫控制計(jì)算，特別是對(duì)外約束產(chǎn)生的收縮裂縫進(jìn)行了詳細(xì)分析。
2. It's difficult to find contracting crack in a sentence. 用contracting crack造句挺難的