A New Synthesis Method of Ethyl Acetoacetate

  • 乙酰乙酸乙酯合成新方法
  • 来源:互联网摘选更新时间:2025-02-04 19:18:58

  • 重点词汇
  • ethyladj.含乙基的;
  • ofprep. 关于;属于…的;由…制成;
  • methodn.方法;有条不紊;
  • acetoacetaten.乙酰乙酸;
  • synthesisn.综合;<化>合成;综合体;综合推理;
  • aart. (用于可数名词或单数名词前,表示未曾提到的)一(人、事、物);用于前有形容词或后有短语的不可数名词前;一(个);每一(个);任一(个);
  • newadj.新的,崭新的;新鲜的,新到的;现代的;初次(听到)的;
  • 相关例句
1、

Africa is not so rich on species, but from a rather small area in East Africa originate the various Saintpaulia, Which as the "African violet" is easily today the most admired little flowering plant in the home of West countries.

非洲的苦苣苔科植物资源并不丰富,但在东非的一小块区域却是各种艳丽的Saintpaulia的原产地,这种苦苣苔又称为非洲紫罗兰,现已成为西方国家室内观赏花卉的重要品种。

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2、

Tissue culture and rapid propagation of Saintpaulia ionantha and Caladium bicolor

非洲紫罗兰和花叶芋的组织培养和快速繁殖

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3、

Tissue Culture in Vitro and Rapid Propagation of Saintpaulia ionantha

非洲紫罗兰组织离体培养及快速繁殖

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4、

The research is helpful to our understanding of effects of Vallisneria asiatica on the environment of water and the possible diurnal variation of phosphorus release in sediment.

试验结果为进一步研究沉水植物对水体中环境因子影响的日变化特征和影响机理,以及底泥磷释放可能存在的日变化具有一定的参考价值。

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6、

Studies on Tissue Culture of a Special Aquicolous Vegetable Called Vallisneria Spinulosa Yan

特种水生蔬菜刺苦草组织培养技术研究

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7、

Study on Biological Traits of Submersed Plant Vallisneria

沉水植物苦草的生物学特性的研究

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8、

Identification of the spectral characteristics of a submerged plant Vallisneria spiralis

大型沉水植物苦草的光谱特征识别

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9、

Effect of Water Nutrient Concentration on Photosynthetic Fluorescence Characteristics of Vallisneria natans

水体营养盐质量浓度对苦草光合荧光特性的影响

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10、

Effects of Vallisneria asiatica on Water Environmental Factors and Its Diurnal Variation

苦草对水中环境因子影响的日变化特征

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11、

But gussy it up a bit, change the name, make it appear more expensive, and maybe it will work better, he said.

但是包装一下,换个名字,使药看起来更昂贵,也许功效就会更好,他如是说到。

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12、

This writer is guilty of trying to gussy up a plain statement to make it fit the rules.

这个执笔者所犯的错误就是把本来明明自己的陈述修饰一番,使之变成合乎条例的规定。

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13、

Do you think I could gussy up this old dress so that it's suitable for the party?

你认为我能不能把这件旧衣服美饰一番穿去参加晚会?

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14、

Application of artificial cardiac pacing treatment to Adams-Stokes syndrome ( report of 41 cases)

人工心脏起搏在治疗阿-斯综合征中的应用(附41例报告)

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15、

Application of Pacemaker in the Treatment of Adams-Stokes Syndrome in 30 Cases

起搏器治疗急性心脑缺氧综合征30例临床分析

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16、

Our data indicate that there is a close relation between Adams-Stokes syndrome and the block level of His bundle as well as the ventricular rate.

本组资料还表明阿斯综合征的发作与希氏束阻滞水平及心室率的快慢有密切关系。

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17、

Objective To explore the clinical characteristics, diagnosis and treatment of arrhythmogenic cardiac syncope and Adams-Stokes syndrome.

目的探讨心律失常致心源性晕厥和阿斯综合征的诊治特点。

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18、
19、

Effects of different seeding dates on growth characteristics and yield of Colocasia esculenta

不同播期对槟榔芋生长特性及产量的影响

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20、

The general characteristics of leaf epidermis of six Colocasia species under SEM shows that they have some differences in crest, epidermis appendent, stomata and the two poles of guard cell having thicken with "T" type or not, etc.

2.6种芋属植物叶表面的电镜扫描特征存在一定的差异,这些差异主要表现在叶片表面纹饰、表皮细胞的附属特征、气孔特征、保卫细胞两极是否T型加厚等方面。

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