Passing the exam gave me a real lift.通过了考试我确实觉得很兴奋。It's a bit like the exam syndrome where you write down everything you know regardless of what has been asked...不论问题是什么就把所知道的统统写上，这有些像典型的考试心理。Our mid-term exam is pe...
大约20分钟后,停止吹氧,对钢液取样分析.After about twenty minutes the blow was stopped and the metal was sampled.转炉采用高效吹氧技术可提高供氧强度0.The intensity of oxygen supply and steel output can be increased by 0....
前质体能分化成各具特点的细胞器,如淀粉体, 叶绿体和有色体.The proplastids differentiate to form characteristic organelles such as amyloplasts, chloroplasts and chromoplasts.淀粉体:一种与合成和储存淀粉粒有关的质体.Amyloplast A plastid that synthesizes and stores starc...