Furthermore, procyanidins low polymer and procyanidins high polymer were separated by organic reagent extraction.
并用有机溶剂萃取法初步分离出低聚原花青素和高聚原花青素。
Plasticizer DOTP was prepared from ethylene glycol residue (major component is PET low polymer) using single step process in which alcoholysis and ester interchange were combined.
以聚酯生产中产生的下脚料——乙二醇残渣(主要含PET低聚物)为原料,采用辛醇合并醇解、酯交换一步法工艺,合成了增塑剂DOTP。
The composition analysis of procyanidins low polymer by HPLC showed that the compositions of the extracted product were the almost same as the compositions of standard procyanidins.
通过HPLC对原花青素低聚物进行了成分分析,结果表明,所提取的产品与原花青素标准品成分基本一致。
With the Zinc as the catalyst, lactide monomer was obtained by decomposition of low polymer. With the zinc diethyl as the catalyst, the lactide was polymerized to Poly(DL-lactic acid).
以锌为催化剂由乳酸的低聚物裂解制得单体丙交醋,再由二乙基锌引发开环聚合得到高分子量的聚乳酸。
The paper expatiates the lab research, evaluating and applying situation in the field about a series of low polymer fracturing fluid adapted in reconstructive low press and low leap store layer.
阐述了适用于低压低渗储层改造的低聚合物压裂液体系的室内研究、评价及现场实施情况。
If you then take the petroleum feedstock and convert it very efficiently into the polymer, it can have a very low environmental footprint.
假如你到时能将得到的石油原料高效地转成高聚物,那么其只会具有非常低的环境足迹。
Lithium polymer batteries power four brushless electrical engines that have a high voltage and a low intensity to prevent them from overheating.
采用锂电池对4个引擎供电可在高电压低强度的情况下工作,这样可以有效的防止电动机过热。
The swelling of Polymer is the basis of continuous phase at low concentration.
聚合物溶胀是聚合物在较低的浓度下形成连续相的基础。
The effects of amounts of polymer polyol and water, low unsaturated polyether polyol on properties of foam were discussed.
讨论了聚合物多元醇和水用量、低不饱和度聚醚等因素对泡沫性能的影响。
Large polymer extended-chain crystals have an important role that cannot be replaced in the study on low dimensional systems of physics.
大尺寸聚合物伸直链晶体在低维体系物理学的研究中具有不可替代的重要作用。
Experimental results demonstrate that the effect of low molecular weight and nonflamable polymer additives used together is better than that of using them separately.
实验结果表明:低分子阻燃剂与自熄性聚合物协同使用的阻燃效果优于两者单独使用时的阻燃效果。
Anti dispersion agent for low fluidity loss underwater concrete was prepared with soluble high molecular polymer and tests on anti dispersion and fluidity loss were carried out.
采用速溶高分子聚合物,制成低流动性损失水下混凝土用抗分散剂,并进行抗分散性、流动性损失试验。
The manufacture of the rare earth polymer luminescence materials with high luminescence intensity, low cost and good process property will be helpful to solve these problems.
制备出发光强度高、成本低、加工性能优良的稀土高分子发光材料有助于解决这些问题。
This result shows that low concentration crosslinking polymer flooding can realize continuous injection with big slug and has a good potential of application.
试验证明低浓度交联聚合物驱能够实现大段塞连续注入,具有良好的应用前景。
COC also has a high moisture barrier for a clear polymer along with a low absorption rate.
环烯烃共聚物也是一个防潮湿的,低吸水率的高透明聚合物。
After polymer flooding and polymer cross link micro gel flooding, the residual oil mainly distributes in middle and low permeable reservoirs. This is the potential area of EOR.
在聚合物驱及聚合物交联微凝胶驱后,地层内剩余油主要分布在中、低渗透层,这是进一步提高采收率的潜力所在。
Based on molecular design theory of polymer, a kind of low slump loss polycarboxylate type superplasticizer was synthesized.
应用高分子设计原理,合成了一种低坍损聚羧酸系高效减水剂。
Based on molecular design theory of polymer, a kind of low slump loss comb-like polycarboxylate type superplasticizer was synthesized.
应用高分子设计原理,合成了一种低坍损梳形聚羧酸系高效减水剂。
One of the main factors which effects the consumption of caprolactam during the flake production is low molecular polymer occurred during production, the by-product of polymerization reaction.
在聚合反应中形成的副产物——环状低聚物一直是影响切片的己内酰胺消耗的主要因素之一。
To ensure the effect of polymer flooding, polymer flooding process generally use low salinity water for preparation of polymer solution.
为保证聚驱效果,聚合物驱油过程中一般采用低矿化度清水配制聚合物溶液。
The diaphragm is made of a low mass polymer, carefully formed to broaden resonant modes to reduce their amplitude.
横膈膜是低质量的聚合物,仔细形成扩大谐振模式,以减少他们的振幅。
Low-pollution: the polymer has excellent thermal stability which is extremely low pollution to FPC.
低污染性:构成离型膜的聚合物具有极佳的热安定性,对软板污染极低。
The water-soluble polymers with a low content of hydrophobic groups in the main chains are called hydrophobic associative water-soluble polymer.
疏水缔合水溶性聚合物是指在聚合物亲水性大分子链上带有少量疏水基团的一类水溶性聚合物。
Such polymer gratings show promising potentials for the fabrication of low-order distributed feedback polymer lasers.
这种方法在低阶分布反馈聚合物激光器的制作中具有很好的应用前景。
The pure polymer gel has low mechanical strength, but the new multi-function composite gel has high mechanical strength, which can control the down-hole loss circulation effectively.
纯粹的聚合物凝胶力学强度相对较低,而新型多功能复合凝胶的力学强度相对较高,能有效的解决井下地层漏失。
The use of silicone polymer material substitution of oil polymer material, is to explore a low-carbon, one important way of circular economy.
用有机硅高分子材料替代石油高分子材料,是探索实现低碳、循环经济的重要方法之一。
Taking the polymer as the substrate material would have wide commerical applications because of the low costs of the material and microreplication.
而以聚合物作为基片材料,由于材料成本较低,且微复制方法成本也很低,因此可望在商业上取得广泛的应用。
Resin Transfer Moulding (RTM) is an established process for manufacturing polymer matrix composites with low cost and high benefit.
树脂传递模塑法(rtm)是一种低成本、效益好的复合材料成型工艺。
A low cost electronics circuit ior humidity switches based on high polymer humidity sensitive capacitors is presented in this paper.
对高分子湿敏电容元件进行了研究,设计了一种廉价湿度开关电路。
A low cost electronics circuit ior humidity switches based on high polymer humidity sensitive capacitors is presented in this paper.
对高分子湿敏电容元件进行了研究,设计了一种廉价湿度开关电路。
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