Some Puerto Ricans feel that for those reasons Puerto Rico should become the 51 st State.一些波多黎各人们认为对于这些原因波多黎各应该成为第51个州.Only a short campaign took place in Puerto Rico, but after the war Spain ceded the island to America....
Don’t invite her to the party. She’s so prim and proper.别请她去舞会，她太古板了。It was a strange conjunction—the prim serious young Queen and the elderly,cynical Whig.那是奇特的组合——古板严肃的年轻女王和上了年纪、玩世不恭的维新党成员相组合。We tend to imagine that th...
在百泉山上的岩石里,有兵蚁出没.There are soldier ants in the cave of the Spring mountain.本文主要讨论采用不同提取方法所得家白蚁兵蚁的外分泌化合物的组成及相对含量的变化.To investigate the exocrine compounds of coptotermes formosanus dinergate exocrine concentrate was obtaine...
提出一种新的催化裂化主分馏塔建模方法.A new method establishing models of FCC main fractionator was proposed.这是一座分馏塔.This is a fractionating tower.研究分析了催化裂化装置的主分馏塔与稳定塔之间操作控制的关联性.The operation and control interaction analysis between main f...