水溶液

Taking HPAM solutions as an example , the unsteady flow of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially is calculated; the distribution of velocity, flow rate and:stress distribution on the outwall of the inner cyinder is obtained; the effect of eccentricity, stroke and frequency on distribution of velocity is analysed; the effect of eccentricity and axial movement on stress distribution on the outwall of the inner cylinder is analysed too.

在计算上，以HPAM水溶液为例，数值计算了幂律流体在内管做轴向往复运动的偏心环空中的流动，得出了这种流动的速度，流量和流体在内管壁上的压力分布；分析了环空偏心度以及内管冲程和冲次对流体速度分布的影响；分析了环空偏心度和内管轴向运动对流体在内管壁上压力分布的影响。

The theoretical and computational results show that an important reason resulting in eccentric wear of the inner cylinder and the pumping rod lies in the nonuniformity of the stress distribution on the outwall of the inner cylinder which yields excentralization effect of the pumping rod when swabbing fluid flows in eccentric annuli with the pumping rod moving axially in a well.

在实验上，通过不同重量百分比浓度的HPAM水溶液在内管做轴向往复运动的偏心环空中非定常流实验，把由理论公式算得的时间平均流量与实验中测得的时间平均流量做了比较，验证了本文数值计算幂律流体在内管做轴向往复运动的偏心环空中非定常流方法的正确性；上述的理论与计算表明，抽油机井杆管偏磨的一个重要原因是，在聚驱工况下，抽汲液体在抽油杆做轴向运动的井筒中流动时，抽汲液体作用在抽油杆外壁上的压力分布的不均匀性所引起的抽油杆在井筒中的偏心效应。

To get cooked-on food stains off your glass ovenware, fill them with 1 part vinegar and 4 parts water, heat the mixture to a slow boil, and let it boil at a low level for five minutes.

对于玻璃制烤箱器皿上因烹饪留下的污渍，可以用比例为1：4的醋水溶液对其进行清洁。先将溶液小煮加热，让溶液低温沸腾五分钟。

In addition to the good property of depressing foam,DSL-130 is also a high efficient defoaming agent and it can be added into the un-foamed aqua to prevent creating foam.Even under 130℃,it can keep not to demulsify and spill oil and it can also keep high efficiency of defoaming.It's an indispensable adjuvant of overfall dye.

DSL-130有机硅消泡剂除了是极佳的抑泡剂之外，它也是极具效能的消泡剂，可加于未发泡的水溶液中作为预防泡沫的产生，它可在130℃高温环境下而不破乳不漂油，仍能保持高度消泡能力及稳定不破乳，为溢流染料不可缺之助剂。

The results showed that both increasing the KMnO4 concentration and using acidic or alkaline solution promoted the removal of Hg^0. The reasons are that H2SO4 in solution facilitates the adsorption of Hg^0 on MnO2, and that free radical OH produced in alkaline solution can oxidate Hg^0. High temperature has a negative effect on the removal of Hg^0, and the effect of Hg^0 initial concentration can be neglected.

研究结果表明，高猛酸钾初始浓度的增加、强酸或强碱条件均有利于Hg^0的去除，H2SO4的存在促进了Hg^0在MnO2上的吸附，而强碱水溶液中产生的OH间接氧经了Hg^0；反应温度的升高抑止了Hg^0的去除，而Hg^0初始质量浓度对反应的影响可忽略；KMnO4。

Proper calculation model for Henry＇s constants of oxygen in aqueous acetic acid at high temperature is not available at present.

高温下氧气在醋酸水溶液中的Henry系数目前还没有合适的计算方法。

Alkali-resistant:Without opparent change in 10% Oxyhydrogen sodium solution at 72 hour.

耐碱性：在10%氢氧化钠水溶液中浸72小时无明显变化。

The thermoplastic phenolic resin for the production of coated sand was synthesized by replacing 37% formaldehyd aqueous solution with paraformaldehyde.

采用多聚甲醛替代37%的甲醛水溶液，可以合成用于覆膜砂生产的热塑性酚醛树脂。

Methods:The preparation procedure of β cyclodextrin inclusion compound of pennyroyal was studied by orthogonal test with 3 factors: Pennyroyal, temperature and time.The inclusion compound was proved by thin layer chromatography and microscope.

用正交实验法研究配比、温度、时间三个因素对薄荷油β环糊精包合物的饱和水溶液法的制备工艺的影响，考察包合物的收率，并用TLC、显微影像验证包合物的形成。

Methods:the preparation procedure of β cyclodextrin inclusion compound of pennyroyal was studied by orthogonal test with 3 factors: pennyroyal, temperature and time.the inclusion compound was proved by thin layer chromatography and microscope.results:the optimum preparation conditions for inclusion compound were established as :pennyroyal 2.5 ml ,inclusion temperature was at 50℃ and for 3.5hr.

用正交实验法研究配比、温度、时间三个因素对薄荷油β环糊精包合物的饱和水溶液法的制备工艺的影响，考察包合物的收率，并用tlc、显微影像验证包合物的形成。结果：最佳的工艺条件薄荷油2.5 ml，包合温度50℃，包合时间3.5 h。

This paper demonstrated the impact on the environment today, an important factor is Education.

本文主要展示了当今影响环境的一个重要因素——教育。

Article 16 The power to interpret these Procedures shall remain with the Ministry of Agriculture and CAA.

第十六条本程序由农业部、国家认证认可监督管理委员会负责解释。