近几年来英国的面貌发生了很多变化。Superficially there have been many changes in Britain in recent years.她几乎是一手改变了英国政治的面貌。She changed the face of British politics almost single-handed.60年代以来，植树造林已经改变了威尔士的乡村面貌。Since the Sixties, afforestat...
纳粹分子用枪托毒打他们.The Nazis worked them over with gun butts.他的嘴上挨了枪托的地方都肿了起来。His mouth was all puffed up where he had taken a rifle butt.他的头骨是被来复枪的枪托砸伤的。The butt of a rifle had been used to bash in his skull....
Either stall or surge may result in combustor blowout.不管是喘振或者爆音,都将引起燃烧室的熄火.Therefore by regulating swirl number of combustor NO emission caw be reduced.因此,适当调整燃烧室的旋流数可以降低NO排放.Measurements were also time - averaged gas te...