表面活性剂的

Analyze the reason of LAS(12-s-12) and different surfactants combinate create different synergistic effect.

分析了LAS(12-s-12)与不同类型表面活性剂复配产生不同协同效应的原因。

Effects of surfactant Tween 80 and Tween 60 on the secretion of extracellular polysaccharide have been compared in the fermentation of mycelia of Coprinus Comatus.

比较了两种表面活性剂Tween 80和Tween 60对毛头鬼伞菌丝体培养过程中胞外多糖释放的影响。

Aqua, Helianthus annuus seed oil*, Simmondsia chinensis seed oil*, Glycerin*, Cetearyl alcohol, Alcohol denat.

水， 荷荷芭油，小麦胚芽油，甜杏仁油，杏桃仁油，乳香精油，没药精油：向日葵油，甘油，甘油基硬脂酸盐，，生育酚：具维生素E性质的醇，醋酸盐；醋酸酯，(山梨醇硬脂酸酯：表面活性剂)，苯氧乙醇

Results also show that micelles formed by nonylphenoxypolyethoxyethanol do not make the oligomer of BPR depolymerize.

聚氧乙烯型非离子表面活性剂胶束不会使BPR低聚体解聚，相反，在某种程度上，它还有利于BPR单体的低聚化。

The bleach boosting comprounds are ideally suited for inclusion into bleaching compositions including those with detersive surfactants and enzymes.

该漂白增效化合物理想地适合于引入包含洗涤表面活性剂和酶的漂白组合物中。

The effect of short chain monohydric alcohols (ethanol, n-butanol) and dihydric alcohols (ethyleneglycol, 1,4-butanediol) on the aqueous two-phase system of cationic and anionic surfactants is studied.

研究了短链一元醇和二元醇(乙二醇、1，4-丁二醇)对正负离子表面活性剂混合溶液(十二烷基硫酸钠-十六烷基三甲基溴化铵-水)双水相的影响。

A series of dissymmetric Gemini surfactants with the structure ofC_(12H_(25)CH_(3_(2)N~CH_(2_(4)N~CH_(3_(2)C_mH_(2m+1),denoted as C_(12)-4-C_m(m is 14,16,18),have been synthesized with N,N-dimethylalkylamine and 1,4-dibromobutane as the initial reagents.

以N，N-二甲基脂肪胺和1，4-二溴丁烷为原料，合成了一系列具有不同疏水链的不对称Gemini表面活性剂C12H25(CH3)2N+(CH2)4N+(CH3)2CmH2m+1(C12-4-Cm，m=12，14，16，18)，并通过1H NMR、MS和元素分析等方法鉴定其结构。

Progress in dissymmetric Gemini surfactants;2. A series of dissymmetric Gemini surfactants with the structure ofC_(12H_(25)CH_(3_(2)N~CH_(2_(4)N~CH_(3_(2)C_mH_(2m+1),denoted as C_(12)-4-C_m(m is 14,16,18),have been synthesized with N,N-dimethylalkylamine and 1,4-dibromobutane as the initial reagents.

以N，N-二甲基脂肪胺和1，4-二溴丁烷为原料，合成了一系列具有不同疏水链的不对称Gemini表面活性剂C12H25(CH3)2N+(CH2)4N+(CH3)2CmH2m+1(C12-4-Cm，m=12，14，16，18)，并通过1H NMR、MS和元素分析等方法鉴定其结构。

First, Fe3O4 magnetic fluid was prepared by coprecipitation method using FeSO4 and FeCl3 as main materials, sodium dodecane sulfate as surfactant.

以FeSO4和FeCl3为主要原料，用十二烷基磺酸钠作为表面活性剂，制备了稳定的水分散性Fe3O4磁流体。

Using 2-bromo-ethanesulfonic acid sodium salt ,α,ω- binary primary amine and dodecanoic acid as the main raw materials, drawing support from two-step synthesis of experiments—Alkylated reaction and Schotten-Baumann acylation, A series of LAS(12-s-12) gemini surfactants were synthesized.

并以2-溴乙基磺酸钠、α，ω-二元伯胺、月桂酸等为主要原料，借助胺基的烷基化和Schotten-Baumann酰基化反应制备了α，ω-烷撑-双钠盐LAS(12-s-12)表面活性剂，联结基团为亚甲基—(CH2)s—(S=2，4，6，8，12)，取得以下进展

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。