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...
Hypersonic wind tunnels operating at very low densities were developed starting in about 1960.低密度超音速风洞大约开始发展于1960年.It would reach hypersonic speeds -- five times the speed of sound.也就是说,要使飞机达到特超音速—即音速的五倍.FEM FCT is used ...
他的行为有许多可非难的地方.His action is accusable in many respects.大家都用非难的目光看着他.All watched him with disapproval.她是完全不应该受人非难的 -- 她只是个多血质的动物,由于热爱生活而红光焕发.She was not reprehensible in any way - just a full - blood animal glowing with a...
那时萨拉丁的积蓄比她还少十五块钱.Saladin had less, by fifteen.一名雕刻师,他制作了许多萨拉丁的仿真石像,在海兰特王国发动纵横塞迪基内亚大陆的侵略战争期间死去.Sculptor who made many statues of Saradin . Died in the war the Highlands waged on Zeteginea....