their research aims to include how specific gene activity and soil fertility govern plant development.

the physical and mechnical properties of the sample injected are depend on 1, 4-cyclohexanedimethanol content.

共聚酯注塑样品的物理和机械性能指标受1, 4- 环己烷二甲醇加量影响.

the synthetic process and application cyclohexyl chloride are introduced.

介绍了氯代环己烷的合成工艺及其应用.

it indicates that the different chemical construction contribute to the dna sequence characteristic differently.

这表明不同的化学结构对DNA序列特征具有不同的贡献.

the answer may lie in the chemistry of the brain and nervous system.

答案可能要到大脑和神经系统的化学结构中去找.

their structures assigned by a combination of one-and two-dimensional nmr techniques.

化学结构用一维和二 维 核磁共振技术确定.

hydrocarbons to be chemically altered to make useful products and materials.

碳氢化合物需改变化学结构,方能制成有用的产品或物料.

with chemical structure theory the authors approached the property similarity of chemical elements from different angles.

运用物质结构理论,多角度从“垂直”、“水平”、“对角”、“离子”、“等电子体”、“单电子体”等方面探讨化学元素性质相似性.

it is the chemical structure of water that makes it an excellent medium for life.

是水的化学结构使它成为绝佳的生命存在的介质.

their electron absorption spectra were determined. photostability has been investigated in relation to the chemical structure.

测定了它们的电子吸收光谱,讨论了结构对光稳定性的影响.

on the basis of the chemical structure of daidzein, a series of isoflavones have been synthesized.

在黄豆甙元化学结构的基础上, 合成了一系列异黄酮衍生物.

relationship of chemical structure and bioactivity about sulfate polysaccharides is summarized.

综述了国内外关于硫酸多糖结构与活性关系的研究进展.

the chemical structure of water makes it an excellent medium for life.

水的化学结构使它成为极好的生命介质.

the unusual properties of this molecule stem from its unique chemical structure.

这个分子的独特性质源于其不寻常的化学结构。

non-formaldehyde finishing of cotton with glyoxal and the properties of the treated product are discussed.

主要讨论乙二醛作为棉织物无甲醛整理的工艺和整理品的性能.

glyoxylic acid was rapidly synthesized by controlled oxidation of glyoxal ) with oxygen ) in acid medium.

在酸性介质中,用氧气氧化乙二醛溶液,可快速合成乙醛酸.

there are several routes to produce glyoxal and the purification techniques are somewhat different.

乙二醛有多种生产方法,其纯化对象亦有所不同.

The results showed that the catalyst combined with diethyl phosphite ( DEP) exhibited the highest activity in isoprene polymerization in hexane at relatively high temperature ( 50 ℃).

结果表明，以亚磷酸二乙酯（DEP）为第三组分的催化体系，在己烷中于相对较高温度（50℃）下的催化活性最高。

Glycine dimethyl phosphoric acid ( GDMP) has been synthesized with glycine, formaldehyde and diethyl phosphite as main raw materials.

以甘氨酸、甲醛、亚磷酸二乙酯为主要原料，合成甘氨酸二亚甲基膦酸（GDMP）。

The phosphorus and formaldehyde free flame retardant FRC-P was prepared by two steps reaction with diethyl phosphate, acrylamide and glyoxal. Its chemical structure was confirmed by infrared spectroscopy.

以亚磷酸二乙酯、丙烯酰胺和乙二醛为原料，经过两步反应合成了磷系无甲醛阻燃整理剂FRC-P，采用红外分析确定了该阻燃剂的结构。

Synthesis Process of Diethyl Phosphite in the Absence of Organic Solvent

无溶剂法合成亚磷酸二乙酯