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 ).
The law could arrest the development of good research if applied prematurely.如果草率施行，该法律将会阻滞高质量研究的进展。The heavy rain driving against the windows made the room prematurely dark.暴雨敲打着窗户，房间早早就暗了下来。Danny was born prematurely, ...
A second drug screen was positive for amitriptyline.二级药物检查为阿莫曲替林阳性.The woman was treated for a possible amitriptyline overdose.这位妇女可能曾用过量的阿米替林治疗.To explore the efficacy and safety of paroxetine and amitriptyline treating...
You should cancel this preposition in the sentence.你应该删去句子中的这个介词.So that each preposition can stay out the emptiness to go to fill up by reader.各介词可以留出空白以便让读者去填入.Preposition - like adverbial particles are a special class...