N - hydroxyethylpyrrolidone ( NHP ) was synthesized from � � - butyrolactone and ethanolamine on Y molecular sieve catalyst by two steps.以改性Y分子筛为催化剂,γ-丁内酯和乙醇胺为原料,采用γ - 丁内酯法两步合成N - 羟乙基吡咯烷酮 ( NHP )....
Four gene polymorphisms were identified in exon 7. They were Gly 551 X ( GGC → GGT ), Arg 554 His ( CGT → CAT ), Gln 567 Arg ( CAA → CGA ) and Val 582 Ile ( GTC → ATC ).同时在外显子7上发现4个位点的基因多态性,分别为Gly551X(GGC→GGT ) 、 Arg554H...
斯科特摔倒了,扭伤了踝骨.Scott fell over and sprained his ankle.他跌倒时扭伤了踝骨.He sprained his ankle when he fell.我当时正在欣赏乡村的宁静,突然摔倒扭伤了踝骨.I was enjoying the peace of the countryside when I fell and twisted my ankle....
No wonder Josef was feeling a bit flummoxed.难怪约瑟夫觉得有点糊涂。Sept and Josef carried the senseless king into a cellar.萨普特和约瑟夫把昏迷不醒的国王抬到地下室去.This time Josef's news had been sensational.这次约瑟夫的消息是惊人的....
薄薄的金属罐把补锅匠当成国王.Thin metal tins think tinkers kings.塑料 、 玻璃 、 纤维&金属罐通过机械手段可以很容易地分离.The plastics, glass, textiles, and cans can be readily mechanically separated and recycled after cleaning....
Martha, when can you finish proofreading the script?玛莎, 你什么时候可以校对完剧本?Milligan cannot stress enough the importance of proofreading your resume.米里根认为,怎么强调对简历的校对都不过分!But each proofreading also different in the international...