Conversely, test made in full - scale boilers are usually difficult to reconcile.与此相反, 在工业规模的锅炉内所做的试验,也难于互相一致.Most boilers have a lifespan of 15 to 20 years.绝大多数锅炉有15至20年的使用期限。The clean coal is sent to a crusher and the ...
What would make Bell stand up in the middle of a gunfight?子弹飞来飞去的贝尔干嘛要站起身 呢 ?Tombstone is best known as the scene of the 1881 Gunfight at the O.墓碑镇最为人所知的就是1881年在OK畜 栏发生的枪战....
" Jeffrey Hollis Jr., " he managed to reply.“ 我叫小杰弗里-霍利斯, ” 他好不容易答了一声.Ralph, Jr. skateboards by. The teenagers watch him from behind the tree.小拉尔夫踏着滑板滑过. 男孩子们躲在树后看着他....Harry Connick Jr.小哈里·康尼克For about five minutes Jeff...