稀释

The method is characterized in that: mixture of macromolecular dihydric alcohol and a dihydroxybutyl-terminated polydimethylsiloxane is dehydrated, added with diisocyanate for reaction, then added with a bis propionic acid, a dihydric alcohol chain extender and a catalyst - dibutyl tin laurate, and is diluted by acrylic ester; temperature reduction and emulsion are performed on the mixture after reaction; chain extension reaction is performed in water by a multi-amine chain extender, and siloxane modified polyurethane dispersoid which contains acrylic ester monomer is prepared; and an initiator - potassium persulphate is added into the siloxane modified polyurethane dispersoid for emulsion polymerization.

特征是先将大分子二元醇与二端羟丁基聚二甲基硅氧烷的混合液脱水后加入二异氰酸酯，反应后加入二羟甲基丙酸、二元醇扩链剂和催化剂二月桂酸二丁基锡，并用丙烯酸酯进行稀释，反应后降温乳化，用多元胺扩链剂在水中进行扩链反应，得到含有丙烯酸酯单体的硅氧烷改性聚氨酯分散体，然后再通过加入引发剂过硫酸钾进行乳液聚合。

Firstly we choose reaction system of the epoxy resin and polyamide according to its well quality in normal temperature. Then we do a series of experiment to ameliorate dilution, toughness and solidify speed .we have three parts of whole felt system, these three parts have dissimilitude quality in order to felt carbon fiber and concrete tightly, which can work in line.

在研究过程中，首先详细分析了各种环氧树脂固化体系的特点，选择了最适于CFRP加固的常温环氧树脂体系，确定了体系的基本组成，然后通过原料、掺量的变化，进行了一系列单组分优化实验，针对CFRP加固混凝土用粘结材料所要求的功能，通过对基体进行稀释、增韧、填加整平材料进行改性，使整个粘结体系能够共同协调工作，达到良好的粘结效果。

During the in vitro expression, the dilution of heart nuclear DNA fragments could enhance the expression activity of LDH/DNA*, the amount of expressed LDH (1-5) is in proportion to the amount of dissociable LDH (1-5) on the LDH/DNA*.

体外表达实验中，稀释心肌DNA片段，促进LDH/DNA 表达LDH( 1- 5)，LDH( 1- 5)表达量与LDH/DNA 中可解离的LDH( 1- 5)量呈正相关性。

During the i n vitro expression, the dilution of heart nuclear DNA fragments could enhance th e expression activity of LDH/DNA*, the amount of expressed LDH(1-5) is in propo rtion to the amount of dissociable LDH(1-5) on the LDH/DNA*.

体外表达实验中，稀释心肌DNA片段，促进LDH/DNA*表达LDH(1-5)，LDH(1-5)表达量与LDH/DNA*中可解离的LDH(1-5)量呈正相关性。

Influences of solvent/oil ratio,dilluent content and temperature on desulfurization and distribution coefficient were investigated.

以乙腈为萃取剂，在正辛烷中加入少量噻吩构成汽油模拟体系，考察了稀释剂含量、剂油比、温度对脱硫率和分配系数的影响。

The results show that the distillate temperature of DLLA is lowed by the addition of diluent ethylene glycol, and the carbonization phenomenon can be avoided, which increases the yield of DLLA from 36.8% to 51.3%.

研究结果表明，在反应体系中加入乙二醇作为稀释剂，能降低DLLA的馏出温度，避免了DLLA在蒸馏过程中产生炭化现象，并使DLLA的平均产率由36.8%提高至51.3%。

The affections on the yield of DLLA caused by catalyst, temperature and time etc. were studied. By using ethylene glycol as diluent, the distillate temperature of DLLA was lowed and the carbonization phenomenon could be avoided, which caused the yield of DLLA increasing from 36.8% to 51.3%. The molecular weight of PDLLA prepared by this method could reach 184,000. DLLA and PDLLA was characterized and analyzed by DSC, XRD and IR.The key of direct method to synthesize PDLLA is the exclusion of H2O from reaction system.

丙交酯开环聚合制备PDLLA的关键在于中间体D，L-丙交酯的制备，研究了催化剂、反应温度、反应时间等因素对DLLA产率的影响，通过在反应体系中加入稀释剂乙二醇，DLLA的馏出温度明显降低，避免了DLLA在蒸馏过程中产生碳化现象，并使DLLA的平均产率由36.8％提高至51.3％，制备的PDLLA分子量最大值达18.4万。

Dourine: a Complement Fixation test with a negative result at a serum dilution of 1:5

iii。马媾疫：血清作1：5稀释，采用补体结合试验进行检测，结果为阴性

Citrus essential oil also can be stored 1-2 years, with a dripper bottle packaging with the product is generally between 3%-10% dilution of essential oils, not pure essential oils.

柑橘类精油也可保存1-2年，用配有滴头的瓶子包装的产品一般是3%-10%之间的稀释精油，不是纯精油。

The system consists of a conventional dynamometer and a dilution bag.

该系统主要由普通测功机和微粒稀释取样袋组成。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。