This paper presents a novel production process of alumina by using isooctanol.研究了利用异辛醇和金属铝制备高纯氧化铝的工艺.The water increases the activity of the catalyst, and the isooctanol improves of the catalyst greatly.微量水分的存在对催化剂的活性有很大...
The saddest thing in the world is a little baby nobody wants.世上最让人难受的莫过于小婴儿遭到遗弃。That was the saddest thing I ever saw with them, the old man thought.它们这情景是我看到的最伤心的了, 老人想.It was one of the saddest days in world history wh...
这首颂诗充分体现出了作者对母爱的赞颂之意.This eulogy poem well displays the author's praise for maternal love.颂诗是济慈最重要也是最成熟的作品.The odes are generally regarded as Keats's most important and mature works.叙事歌谣 、 颂诗等的背诵.The recitation...
The knee's coming on fine, I'm walking comfortably already.膝盖恢复得很好，我现在走路已经不疼了。He was comfortably seated in a soft reclining chair.他舒舒服服地坐在柔软的躺椅上。Take a comfortably wide stance and flex your knees a little.双腿适度分...