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Keywords N formyl compounds;NMR;Isomer;Hydrogen bond;Variation temperature experiment; 甲酰基化合物;NMR;异构体;氢键;变温实验;
One advisable way is to synthesize NFM by acylating morpholine with formic acid as acylating agent. 较可取的是以甲酸为酰化剂，吗啉酰化初期强放热反应，该类反应安全操作条件是安全生产的关键。
Many risk,hazard and environmental factors are existing in the acylation process of N-formylmorpholine(NFM) from morpholine. 吗啉酰化合成甲酰吗啉(NFM)过程存在诸多安全与环保的危险、有害因素。
Many risk, hazard and environmental factors are existing in the acylation process of N-formylmorpholine (NFM) from morpholine. 摘要吗啉酰化合成甲酰吗啉(NFM)过程存在诸多安全与环保的危险、有害因素。
High performance solvent N-formylmorpholine(NFM)was synthesized from morpholine and formic acid, dehydrated through the azeotrope rectifying method using water carrying agent A. 摘要以吗啉和甲酸为原料，利用带水剂A通过共沸精馏的方法脱水，合成了高性能溶剂N-甲酰吗啉(NFM)。
He fought in the N African campaign during the last war. 在上次战争中他在北非战役参战。
The Synthesis of N-acetyl Morpholine. 关键词：吗啉;乙酰氯;乙酰吗啉;
That will be a total of eighty N T. 那总共八十台币。
Rock-'n'-roll was started in the 1950s. 摇滚乐发源于20世纪50年代。
Rest unclogs our 18th n substitute af. 请取消我方18日的订单，并以下列代替。
I can't make head (n)or tail of these instructions. 我对这说明书摸不着头脑.
A series of morpholine derivatives were synthesized. 合成了一系列吗啉衍生物;
The family of nine pig it I n one room. 一家九口挤在一间屋里。
"Dear friend, you can lend to me how many eggs morpholine? “亲爱的朋友，你能借给我几个鸡蛋吗？”
B: I like listening to Rock 'n' Roll. 我喜欢听摇滚乐。
The purity of N-acetyl morpholine distillated is 98.5%. 反应产物经减压蒸馏后可得到大于98.;5%25的高纯度N-乙酰吗啉。
Go N to kill the dragon and get the blade. 从北边的房间出去，到山洞中杀龙，得炎之剑。
They were delegates from India to the U. N. 他们是印度派到联合国的代表。
Both transistors are not of the n. p. n type. 两个晶体管不都是n.;p
Adjoin two new vertices X and Y to N. 在N中添加两个新顶点X和Y。