工作场所苯等有机溶剂浓度超标2 ~25倍。
Benzene concentrations in work place were2 ~ 25times over hygienic standard.
但是到目前为止，对溶剂浓度的研究鲜见文献报导。
So far, studies on the solvent concentration are rarely reported in literatures.
溶质浓度和溶剂浓度对通量没有直接影响，起决定作用的还是溶剂本身。
The solute concentration and solvent concentration had no direct effect on the flux. The main effect on the flux is the character of solvent.
讨论了提取溶剂浓度和用量、微波提取时间和微波功率对微波萃取的影响。
The effects of solvent concentration and volume, microwave radiation time and power on extraction output were investigated.
通过模拟，验证了具有如下特点的残余曲线图，能够使塔顶产品浓度高于溶剂浓度。
We proved that the residual curve which had the following properties could make the product concentration higher than the solvent concentration through simulating.
方法：调查深圳市福田区工业企业有机溶剂使用情况，并对生产环境空气有机溶剂浓度进行测定。
Methods: Investgating use status of organic solvent in factories, and monitoring concentration of organic solvent in production environment.
结果表明：凝固浴中溶剂浓度对纺丝过程及纤维强度有重要影响，而凝固浴温度对纤维的影响相对较小；
The results show that spinning and fiber properties are influenced by the concentration of the solvent in the coagulating bath and the temperature of the coagulating bath.
这个特征时间受多种因素的影响，如温度、物理老化、 压力和溶剂浓度、损伤、应力水平或应变水平等。
The changes in intrinsic time of viscoelastic materials are usually studied in the framework of the free volume theory.
而且，进一步研究了吸附量与溶剂浓度的关系，发现在保留情况下，其吸附量的对数与流动相中置换剂的摩尔浓度之间成线性关系。
It was also found there exists a linear relationship between the logarithm of adsorbed amount and molar concentration of the displacing agent of mobile phase.
采用水浴振荡法，以苦瓜为原料，苦瓜总黄酮得率为考察指标，研究提取溶剂浓度、提取温度、料液比、提取时间、提取次数等因素对总黄酮得率的影响。
Experiments were carried out to explore the extraction conditions of the water bath shaking method of total flavonoids from bitter melon, which was as raw materials.
以甲基丙烯酸与甲基丙烯酸甲酯为原料，过硫酸钾为引发剂，经溶液聚合制备出药用肠溶性丙烯酸树脂。考察了物料配比、反应温度、溶剂浓度、引发剂用量对反应的影响。
Enteric acrylic acid resin for drug delivery was prepared by the solution polymerization with methacrylic acid and methyl methacrylate as raw materials and potassium persulfate as initiator.
方法本实验以氯仿为溶剂，调节plga溶液浓度和流量分别制备了具有不同表面形貌的纤维支架。
Methods with chloroform as the solvent, the PLGA fiber scaffolds with different surface morphology were produced altering PLGA solution concentration and the flowing rate.
渗透是一种自然现象：水通过半透膜，从低溶质浓度一侧到高溶质浓度一侧，直到溶剂化学位达到平衡。
Osmosis is a natural phenomenon of water through the membrane to high solute concentration from low solute concentration on one side, until the solvent chemical potential balance.
用于稳定性评估的分析物储备液应使用适当的已知浓度的溶剂制备。
Stock solutions of the analyte for stability evaluation should be prepared in an appropriate solvent at known concentrations.
方法：调节溶剂种类、温度范围和测试浓度，考察线性关系、精密度和回收率。
Methods: Adjusting the kind of solvent, changing the range of testing temperature and concentration, examining linear relation, precision and percent recovery.
考察了聚合反应条件，如溶剂种类、聚合温度、模板浓度、引发剂用量、转速、预聚合时间等对分子印迹聚合物微球特性的影响。
The effects of reaction conditions were studied, including the kind of solvent, polymerization temperature, the concentration of template and initiator, rotational speed and pre-polymerization time.
渗透力是一个溶剂在其容积内浓度不断平衡的趋势。这个力靠施加压力使油漆通过超滤装置来克服。
Osmotic force is the tendency of a solvent to equalize concentration throughout its volume. This force is overcome by applying pressure to the paint passing through the ultrafilter.
阐明了聚乙烯毛细管辐射接枝苯乙烯时，剂量、剂量率、单体浓度、溶剂、温度和交联剂等对接枝率的影响。
The effects of dose, dose rate, monomer concentration, solvents, temperature and crosslinking agents on the graft copolymerization of styrene with polyethylene capillary were illustrated.
实验表明，在加入溶剂后全回流操作一段时间后，塔顶浓度上升基本稳定，而且在产品采出过程中塔顶浓度也维持稳定。
The experiment showed that the overhead concentration rises to a primarily stable value after the solvent is introduced and keeps constant during the product withdrawing.
概述了影响甲壳素和甲壳胺纤维质量的因素，如甲壳素和甲壳胺的品质、纺丝原液的溶剂选择及浓度的确定、凝固浴的确定；
The factors affecting the quality of chitin and chitosan fibers were described, including chitin and chitosan quality, solvent for spinning dope and its concentration and coagulation bath.
聚苯乙烯的粒子形态与溶剂种类和单体浓度有很大关系。
The particles morphology of polystyrene was much related to the types of solvent and concentration of monomer .
低浓度有机溶剂的存在有利于抑菌活性的提高。
Some organic solvents could improve its activity at low concentration.
研究了聚合溶剂，单体浓度，反应温度以及配合物中稀土离子性质对催化活性和所得聚苯乙烯分子量的影响。
The effects of the solvent, monomer concentration, temperature and rare earth element on the polymerization and the molecular weight of polymer were investigated.
着重从单体浓度、聚合溶剂、引发剂等条件对共聚合行为进行了探讨。
Various copolymerization conditions such as amount and kind of initiators, concentration of monomers and solvents were examined.
结果表明，小分子有机凝胶的形成及其稳定性与有机溶剂种类、凝胶因子浓度和凝胶因子中碳链长度密切相关。
It is indicated that the formation and stability of low-molecular weight organogels are related to varieties of solvents, concentrations of the gelators and lengths of alkyl chains.
动态法测定了灰黄霉素在不同的操作温度、压力以及共溶剂丙酮浓度下在超临界CO2中的溶解度。
The solubility of griseofulvin in supercritical CO2 with cosolvent acetone at different temperature, pressure and concentration was measured in this study.
研究了浓度、配比、溶剂、催化剂与反应速度之关系以及废母液的再利用。
The reaction rate, concentration, solvents, ratio, Catalyst are dealt with respectively and the reuse of waste liquors is also cared about.
对DS的结构，DS及单体的浓度以及溶剂性质的影响都作了研究。
The influence of DS structure, concentration of monomer and DS, and the nature of solvents are also studied.
对DS的结构，DS及单体的浓度以及溶剂性质的影响都作了研究。
The influence of DS structure, concentration of monomer and DS, and the nature of solvents are also studied.
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