任选的是, 可用加氢催化剂将纯化的二聚异丁烯加氢生成异辛烷.Optionally, the purified diisobutylene may be hydrogenated to isooctane hydrogenation catalyst.应用正碳离子聚合的方法合成新型聚异丁烯遥爪预聚物.The new telechelic prepolymers of polyisobutylene have been synthesize...
Your dad and Admiral Spruance are rounding the Smiths'terrace.你爹跟期普鲁恩斯少将绕过坡上史密斯家的房屋来了.He had sought work as a cowboy, rounding up cattle.他找了一份放牛的差事，负责把牛赶到一起。After rounding Cape Finisterre the boats ride the north-ea...
在沙漠的尘暴中要想保持方位感是不可能的.To keep your bearings in a desert sandstorm is impossible.不借助地图我就无法说清方位.I couldn't tell which direction without recourse to a map.只要记住这座小山位于正北方,你就能确定你所在的方位了.You can orient yourself by remembering...
我看过以他的回忆录改编成电影的预告片.I watched a trailer for the screenplay of his memoirs.有些电影预告片甚至比它们宣传的电影还精彩.Some trailers are even more exciting than the movies they advertise.今天暴雪放出了一部正在制作中的为即将到来的大型多人在线游戏魔兽世界准备的预告片.Today Blizzard...