该队还因其良好的体育精神及公平竞争精神而受到了表扬。The team also won praise for sportsmanship and fair play.对于有些人来说，赛跑的全部意义就是竞争。For some people, competing is the be-all and end-all of their running.他们现在想要公平竞争。They are now trying to compete on an...
Etherification of butanol with ethylene oxide by a new style solide acid catalyst is investigated.研究了丁醇和环氧乙烷在一种新型固体酸催化剂上的醚化反应.The purified rice amylose and amylopectins were obtained by n - butanol recrystallization meth...
碳精棒常用于电弧灯.The stick of carbon is often used in an electric arc lamp.内阳极有两种材质,分别为不溶性碳精棒和含磷铜棒.The inner anode includes insoluble carbon and phosphorous - copper bar....