二元体系

Critical point data for these dilute SCF-cosolvent binary and ternary systems are imperative for the design of efficient supercritical separation and reaction processes. So that, it is very important to study the critical point data in binary and ternary systems.

这些超临界流体—共溶剂体系的临界点数据对于超临界萃取和反应来说是非常重要的理论参数，因此研究这些二元和三元体系的临界点数据是非常有意义的。

The results showed that hexadecanoic acid diethanolamide and Daqing crude oil has favorable compatibleness, the binary system containing hexadecanoic acid diethanolamide(with the mass concentration of 0.2%) and HPAM(with the concentration of 1000mg/L)can produce ultralow interficial tensions 8.94×10~(-3mN/m against Daqing crude oil; the three compound combination system containing hexadecanoic acid diethanolamide(with the mass concentration of 0.2%) and HPAM(with the concentration of 1000mg/L)and Na_2CO_3(0.1%)can produce ultralow interficial tensions 6.34×10~(-4mN/m against Daqing crude oil.

其中，十六酸二乙醇酰胺与大庆四厂原油具有良好的配伍性，十六酸二乙醇酰胺0.2%、HPAM1000mg/L组成的二元驱油体系与大庆四厂原油可形成超低界面张力，最低可达到8.94×10~(-3)mN/m；十六酸二乙醇酰胺0.2%、HPAM1000mg/L、Na_2CO_31%组成的三元驱油体系与大庆四厂原油间的界面张力最低可达6.34×10~(-4)mN/m。

The components of the system being studied are divided into two groups according to degree of volatility, named quasi-heavy component and quasi-light component, then through solving the vapor-liquid equilibrium data of the system, quasi-binary method can be applied to carry out RD graphical design calculation.

把待研究体系的多个组分按照挥发度高低划分为拟重和拟轻两个组分，通过求解体系的汽液平衡数据，可采用拟二元方法进行反应精馏塔的图解设计计算。

PP was taking as basic material,and blended with ethylene propylene rubberby means of melt blending to prepare easy openable infusion bottle-cover materials,in which a certain amount of LDPE and plasticizer was added to improve the compatibility and mechanical properties of the blend.

以聚丙烯为基材，与二元乙丙橡胶用熔融共混的方法，制备易开启式输液瓶外盖用料，并加入一定量的低密度聚乙烯和增塑剂以改善体系相容性和力学性能，讨论了增塑剂邻苯二甲酸二辛酯、乙酰柠檬酸三正丁酯及丙三醇对共混体系力学性能的影响。

Based on the parameters of the nonideal mixing term, an analytical expression for the solid-liquid equilibrium is derived. The phase behavier of the binary and ternary system could be predicted based either on the regular solution model or the ideal solution model.

该表达式能够广泛表达正规溶液模型或理想溶液模型下的二元及三元体系固-液相平衡，利用表达式计算的相平衡组成与软件计算值较为吻合，表明该式可应用于本研究体系的固-液相平衡计算中。

Then the process was compartmentalized to different systems according to the existent reactions and their own peculiarities, which were listed as six binary systems (Na_2O-Al_2O_3 system, CaO-Al_2O_3 system, CaO-SiO_2 system, Na_2O-Fe_2O_3 system, Fe_2O_3-CaO system and Na_2O-SiO_2 system), two trinal systems (Na_2O-CaO-Al_2O_3 system and Al_2O_3-CaO-SiO_2 system), three multisystems (Na_2O-Al_2O_3-CaO-SiO_2 system, Na_2O ·Al_2O_3-Na_2O · Fe_2O_3-2CaO · SiO_2 system, Na_2O · Al_2O_3-Na_2O · Fe_2O_3-mCaO ·Fe_2O_3-2CaO ·SiO_2 system).

考虑体系中生成其它物质的可能性，并针对烧结过程中存在的反应及其特点，本论文将熟料烧结过程反应划分为如下体系进行研究，即六个二元系(Na_2O-Al_2O_3系、CaO-Al_2O_3系、CaO-SiO_2系、Na_2O-Fe_2O_3系、Fe_2O_3-CaO系和Na_2O-SiO_2系)，两个三元系(Na_2O-CaO-Al_2O_3系和Al_2O_3-CaO-SiO_2系)，三个多元系(Na_2O-Al_2O_3-CaO-SiO_2系，Na_2O·Al_2O_3-Na_2O·Fe_2O_3-2CaO·SiO_2系，Na_2O·Al_2O_3-Na_2O·Fe_2O_3-mCaO·Fe_2O_3-2CaO·SiO_2系)。

The existence of the urban-rural dualistic structure leads to the dualistic character of Social Security System.

我国城乡二元结构的存在，导致社会保障体系出现了明显的二元化特征。

Thus the satisfied resalts have be achieved using the fluorane/iodonium salt thermocoloration system composed of binary dye and binary color developer with low melting point.

采用低熔点的二元染料和二元显色剂组成的荧烷/碘鎓盐热致显色反应体系获得了满意的结果。

The stable or unstable state of the montmorillonite-water dispersion is mainly effected by the properties of montmorillonite, water, and stabilizers as well as their interactions, while the type, the structure, the properties and the concentration of the stabilizer play dominate roles. Based on the molecular designing clues, this research selected three sulfonated copolymers as the stabilizers, i.e. the sodium 2-acrylamido-2-methyl-1propane sulfonate /acrylamide /disodium itaconate terpolymer, the AMPS/AM/N-vinyl pyrrolidone terpolymer and the sodium styrenesulfonate /IA copolymer. The preparation and characterization of the sulfonated copolymers were discussed, the high-temperature stability of the montmorillonitewater dispersion was characterized with the rheology, the filtration, the particle size distribution, the electrostatic properties, and the adorption of the sulfonated copolymers onto montmorillonite particles. At the same time, a systematic mechanism of the hightemperature stabilization of the dispersion was presented.

本文构筑了分子设计的思路，选取AMPS(2-丙烯酰胺基-2-甲基丙磺酸钠)/AM/IA三元共聚物、AMPS/AM/NVP三元共聚物和SSA/IA二元共聚物等三种磺化共聚物作为蒙脱土-水分散体系的高温稳定剂，进行了磺化共聚物稳定剂的制备与表征；从流变学、滤失性能、粒度分布、电性质以及磺化共聚物在蒙脱土上的吸附作用等方面，对蒙脱土-水分散体系的高温稳定性进行了研究，考察了蒙脱土-水分散体系的高温稳定性能，同时提出了高温稳定机理。

Two new kind of energy transfer donor-acceptor dyads consisting of α-naphthoic acid moiety and 9-aminoacridine units linked by tetraethylene glycol or triethylene glycol flexible chain have been synthesized.

本工作分别用聚三乙二醇及聚四乙二醇柔性链将α-萘甲酸酯与9-氨基吖啶连接起来，合成了两种新型二元发色团分子体系，在两个体系中，选择激发α-萘甲酸酯，都可以发生从α-萘甲酸酯到9-氨基吖啶的高效率的单重态-单重态能量传递。

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。