石墨甚至其线性类似物, 聚 ( 名聚-苯撑 ) 都是极难溶解的.Graphite and even its linear counterpart, poly ( p - phenylene ) are too insoluble.正和它们的低分子量的类似物一样,微量的酸或碱常能促进聚合物的水解.Hydrolysis of polymers if often catalyzed by traces of acids or bases.石墨...
克拉克远远地开在前面，已保持了一段足够长的安全车距，他于是放慢车速，开始定速巡航。Out in front, Clarke had built up such a sizeable safety margin that he eased the pace and started cruising.在伦敦泰晤士河上的巡航已成为一年一度的引人注目的事.Cruises on the Thames in London, have become ...
"I can't possibly comment on that," Paul said evasively.“我无法对此发表评论，”保罗闪烁其词地说。" At another time , sir, " he returned , evasively, " he present time is ill - convenient for explaining. "“ 下回再解释吧, 先生, ” 他躲闪道, “ 现在解释不方便...