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It'shows that the key step is the synthesis of 4 - methyl - dihydro - furan - 2 , 3 - dione.
研究结果表明关键步骤为原料 4- 甲基 -2, 3- 呋喃二酮的合成.
She finally wrote me asking forgiveness and I found it fair dinkum.
她最后写信给我请求原谅,我觉得来信写得很诚恳.
The president has accepted a diminution of the powers he originally wanted.
总统已经接受了对自己原本要求的权力进行削减。
Amphoteric monomer is prepared with acrylic acid , dimethylamine and chloroethanol by Mannich reaction.
以丙烯酸、二甲胺、环氧氯丙烷为原料,通过曼尼希反应制得两性离子单体.
The silicone quaternary was synthesized reaction of - H silicone, unsaturated - ether, chloroacetic acid, dimethylamine.
以低含氢硅油、不饱和聚醚、一氯乙酸和二甲胺为原料, 制备得阳离子有机硅油.
Methods: The plasma fibrinogen and D - dimer in pulmonary embolism patients were measured.
方法对经临床确诊为肺栓塞患者测定其血浆D - 二聚体与纤维蛋白原浓度.
Diisopropyl phosphite was directly synthesized from phosphorus trichloride and isopropanol by using the solvent method.
以三氯化磷与异丙醇为原料,用溶剂法合成了标题化合物.
Diisopropyl succinate was synthesized from succinic acid and isopropanol with p - methyl benzenesulfonic acid as catalyst.
摘要以丁二酸和异丙醇为原料及对甲基苯磺酸为催化剂,催化合成丁二酸二异丙酯.
The water - borne polyurethane was based on polyester diol and toluene diisocyanate etc.
以聚酯多元醇、甲苯二异氰酸酯为主要原料合成了水性聚氨酯乳液.
Polyurethane elastomers based on glycols ( PEA, PPG PTMG ) , diisocyanate ( TDI ) and chain extender ( E - 300 ) were prepared.
以多元醇 ( PEA, PPG,PTMG ),PDI, E300为原料,制备了 PU 弹性体.
The diisobutyl dicarboxylate was prepared by using acid and isobutanol as material and acid as catalyst.
以二羧酸和异丁醇为原料,用硫酸作催化剂,合成二羧酸二异丁酯.
Let me digress for a moment and explain what had happened previously.
让我岔开一会儿,解释原先发生了什么.
Methods: Using the whole mount in situ hybridization with a digoxigenin labeled probe.
方法采用地高辛标记探针的整体胚胎原位杂交方法.
The synthetic principle and the process method diglycol dioleate were discussed in this paper.
本文探讨了一缩二乙醇油酸双酯酯化反应的合成原理及其工艺操作方法.
This paper describes the basic principles of the image digitizer and its development course.
本文论述了图像数字化器的基本原理及其发展过程.
All the tracks have been digitally remastered from the original tapes.
所有的曲子都已经从原始录音带转录到了数码母带上。
Electric file is to digitalize and store documentspaper to computer.
档案电子化就是把原有的纸质档案数字化存储的结果,从而形成电子档案.
She recognised most of the things which she had known in his old diggings.
她认出了这里的大部分东西都是她在他原来的寓所里曾经见到过的.
The separation and determination of the primary impurities of diflubenzuron by liquid chromatography were carried out.
通过反相液相色谱方法往甲醇与水的混合流动相中加入适当调节剂,分离和测定除虫脲原药中的主要杂质.
The diffractive efficiency is measured and the errors are analyzed.
测量了菲涅耳透镜的衍射效率并分析产生误差的原因.

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