查询词典 polyvinyl

Then, basing on the practical problems of the studying area-the thickness of aquifer is little, the capability of depositing water is finite, the Quaternary loose stratum directly superimposes the bedrock strong breeze girdle, the writer thinks it is difficult to answer for the water use of the polyvinyl chloride project by the centralized tube well pumping.

根据研究区含水层厚度小、储水能力差，第四系松散层直接叠加在基岩强风化层之上的具体特点，认为管井集中开采难以满足聚氯乙烯工程的需水量要求，采用集水廊道最大限度地激发河流对地下水的补给，是在这一地区获得较大开采量的有效方式。

Taking the andalusitc imported from South Africa and alumina fiber Produced by Luoyang Institute of Refractory Research as raw materials, and adding polyvinyl and aluminum sulphate as binder respectively, through dispersion, degassing,compression molding process and sintering at several elevated temperatures, samples of the composites with different contents of fibor were made.

采用进口南非红柱石和洛阳耐火材料研究院生产的氧化铝纤维为原料，分别用聚乙烯醇和硫酸铝作为结合剂，经过分散、真空脱气、压力成型及在不同的温度下高温烧结制得氧化铝纤维-红柱石复合材料。

Through these we find the characterization of ammonium sulfate and aniline ratio, hydrochloride and perchlorate (HCLO4) concentration, polyvinylpyrrolidone and polyvinyl alcohol of Concentration on the morphology and conductivity polyaniline films have great impact.

通过这些表征我们发现过硫酸铵与苯胺摩尔比、盐酸和高氯酸（HCLO4）的浓度、聚乙烯吡咯烷酮和聚乙烯醇的浓度对聚苯胺薄膜形貌和电导率有很大的影响。

A fine quality of Zn-Cr coating can be synthesized as molar ratio of zinc powder:chromate=0.08-0.2,chromate:acrylic acid=0.8-4,the amount of polyvinyl alcohol in the coating bath reaches 20-40at%.

当铬酐与锌粉的质量比在0.08～0.2之间，铬酐与丙烯酸的质量比在0.8～4之间，10％聚乙烯醇含量在7～13wt％时，司·得到质量较好的锌铬涂层。

The optimum content of Zn-Cr film coating bath have been concluded as follows:1000g/L zinc powder,2wt% chromate,0.2wt% acrylic acid,7vt% polyvinyl alcohol through the quadrature experiment.

通过正交试验筛选出锌铬涂液的最佳组分为：锌粉1000g／L、铬酐2wt％、丙烯酸0.2wt％、聚乙烯醇7wt％。

The effect factors of solid content, alkali, reaction temperature, reaction time, cross-linking agent, starch, polyvinyl alcohol, termination reaction point, resistivity against water, alkali washfastness on the performance of the adhesive for labeling beer bottle were investigated.

采用乾酪素、聚乙烯醇、酸变性淀粉为主要原料，制备改性酪蛋白啤酒瓶标签胶，讨论了固含量、碱、反应温度、反应时间、交联剂、酸变性淀粉、聚乙烯醇、终点判断、耐水性、碱洗净性等因素对酪蛋白商标胶的制备与性能的影响。

A novel label adhesive with good performance for labeling beer bottle was prepared by using acrylic acid,styrene, butyl acrylate as functional monomers grafted to polyvinyl alcohol by emulsion polymerization,neutralizing carboxyl with NaOH and ZnO.

通过乳液聚合把丙烯酸、苯乙烯、丙烯酸丁酯单体接枝到聚乙烯醇上，用ZnO和NaOH中和增稠，制备了一种综合性能优良的新型啤酒贴标粘合剂。

The surface and cross section of uncoated and coated Polyvinyl acetals were analyzed by microscope and SEM, results showed that, the contact angle of the coated fiber decreased in most of the areas of the fibers, the chitosan film on the fibers was thin and uniform. At the same time, there was no residual material in the coating process and the whole process was environmentally friendly.

结果表明，该方法切实可行，通过显微镜和SEM照片对涂覆壳聚糖前后的维纶纤维进行微观分析，发现在化学纤维表面形成的壳聚糖膜薄而均匀，同时增加了化学纤维的表面粗糙度，涂覆效果较好；通过接触角的变化说明纤维的亲水性得到改善；该方法还具有无残留物和对环境友好的优点。

Typical examples are acrylics,nylon,polyethylene,and polyvinyl chloride.

像丙烯酸树脂、尼龙、聚乙烯和聚氯乙烯都是这方面的典型例子。

Assessment of Gastric Sensitivity, Compliance and Accommodation: The stomachs were distended isobarically by barostat via a double-lumen polyvinyl tube with an adherent plastic bag, gastric sensitivity was measured by perception threshold and gastric compliance was calculated as the slop of the pressure-volume curve.

胃敏感性、顺应性和容受性的检测：用barostat及双腔气囊导管对胃进行等压扩张，以患者的不适阈代表胃对扩张的敏感性，以压力-容量曲线的斜率反映胃顺应性；将气囊压力恒定为MDP+2mmHg，以进食前后胃内平均容量的差值来反映近端胃的容受性。7。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。