席夫碱主要是指含有碳氮双键的亚胺或甲亚胺特性基团的一类有机化合物，早期的研究一般为缩胺类席夫碱。
Schiff base is the Types of organic compounds which contain C-N double bond of the imine or azomethine group characteristics. the early research focus on Amine Schiff base reduction.
一旦具有该特性基团的化合物的相对含量发生变化，吸收系数必然相应变化，所以都存在“标准油”的选择问题。
Once the relative content of the compound with the characteristics of the group, changes, the absorption coefficient will surely change. Hence the problem of choice of standard oil has to be faced.
R基团赋予氨基酸物理化学特性，例如极性（亲水性和疏水性）以及电荷（酸性或正电荷，碱性或负电荷）。
The R-groups give the amino acids their physical-chemical characteristics such as polarity (hydrophobic or hydrophilic) and charge (acidic or positive versus basic or negative).
二唑基团的引入，改善了PPV衍生物的电子传输特性。
The electron transport ability of OPPV was improved due to introducing oxadiazole groups.
巯基乙酸钠中两个极性基团一COOH及—SH具有同硫化矿强烈反应的特性，是代替氰化钠抑杂的理想药剂。
COOH and -SH two polar groups in mercaptoacetic sodium acid have properties of strong reaction to sulphide ores. It is the most satisfactory agent for replacing sodium cyanide to suppress impurities.
研究了直链和链中插有环己烯基团的吲哚类菁染料薄膜的光谱特性并对其进行了静态测试。
In this paper, spectroscopic properties and static test of two different kinds of indoaniline cyanine dye films were studied.
主要包括半花菁衍生物在LB膜中的聚集特性；亲水基团与疏水基团对半花菁衍生物激发态寿命的影响等。
The study mainly include the aggregation behavior of hemicyanine derivatives in LB films, the influence of the donor acceptor on the excited level and excited lifetime of the hemicyenine derivatives.
本论文立足于合成一种新型的含有双键的高性能环氧树脂——二烯丙基双酚A型环氧树脂(DADGEBA)，并对该环氧树脂的基本性能及双键与环氧基团双固化的特性进行了研究。
This thesis bases on synthesizing a novel high performance epoxy resin (DADGEBA) containing double bonding and deeply study on the basic performance and double-curing behavior of epoxy DADGEBA.
本论文立足于合成一种新型的含有双键的高性能环氧树脂——二烯丙基双酚A型环氧树脂(DADGEBA)，并对该环氧树脂的基本性能及双键与环氧基团双固化的特性进行了研究。
This thesis bases on synthesizing a novel high performance epoxy resin (DADGEBA) containing double bonding and deeply study on the basic performance and double-curing behavior of epoxy DADGEBA.
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