查询词典 acid value

Firstly, polyacrylamide with 26 million molecular weight was compounded in lab through establishing optimum compounding initiator proportionality of 1:1. 3 and mass concentration of 170 mgL^(-1), temperature of 10 ℃, acrylamide mass percentage of 25%, electrical conductivity of 3.6 μSm^(-1) and pH value of 6.57. The salt-resistance, thermal endurance and shear-resistance of polyacrylamide could be enhanced b introducing sulfonic acid group or styrene sulfonate group or drawing the two groups above at the same time. Secondly, chelator HEDP, bactericide isoquinoline ketone and oxygen scavenger thiourea were optimized to improve the compatibility of polyacrylamide and formation water.

在由室内试验确定了复合引发剂最佳比值1：1.3和质量浓度170 mgL^(-1)、合成最佳温度10℃、丙烯酰胺单体质量分数25%、电导率3.6μSm^(-1)和pH值6.57后，合成出相对分子质量高于2.6×10^7的聚丙烯酰胺，同时通过丙烯酰胺单体复配引入磺酸基团、苯乙烯磺酸基团或同时引入此两种基团，提高了聚合物的抗盐、抗温、抗剪切性能；后针对聚丙烯酰胺与地层水配伍性差的问题，优选出HEDP螯合剂、异噻唑烷酮杀菌剂和除氧剂硫脲，对聚合物稳定效果明显。

The results indicate that different molecular weight of dextran could be obtained by direct fermentation,and the acid hydrolyzing in the old technology be avoided.The yield reached the maximum by controlling the pH value to be 8.0,and the inorganic salt could promote the growth of the Leuconostoc mesenteriodes with the effect of promotion being Mn2++Ca2+＞Mn2+＞Ca2+.

结果表明：通过定向发酵技术可得到符合要求的不同分子量的右旋糖酐，避免了老工艺中酸水解工艺；控制发酵培养基pH值为8.0，可使产率最大；无机盐离子Mn2+和Ca2+能促进L.M菌的生长，其促进菌生长的程度大小依次为：Mn2++Ca2+＞Mn2+＞Ca2+。

Under optimized conditions, yield of levulinic acid is 38.426%, which is near to the value by estimation of the model.

在调酸催化水解工艺条件下，目标产物收率为38.426%，与模型估计值接近。

The traditional Chinese medicine thought its nature is cold,the solvable bothersome painfullyhot sun,the cold and heat consumption,in the accent induces perspiration,put someone in theknow,kills the fishy smell,has the very high for medicinal purposes value,in the modernresearch discovery fermented soybean includes nutrients soybean protein,many kinds ofmineral substance,multivitamins,linoleic acid,phosphatide,meals textile fiber and SO on,butalso includes the many kinds of biological activity ingredient for example:the soybeanmulti-peptides,the soybean low polyose,melanoidin,the soybean isoflavone class and SO on,they have the special health care function.

豆豉与酱油、腐乳、豆酱并列为我幽四大传统大豆发酵制品。它味道鲜美，既可直接食用又可作烹饪菜肴的调味料。传统中医认为它性寒，可解烦热毒，寒热虚痨，调中发汗，通关节，杀腥气，具有很高的药用价值；现代研究发现豆豉中含有大豆蛋白、多种矿物质、多种维生素、亚油酸、磷脂和膳食纤维等营养物质，还含有大豆多肽、大豆低聚糖、蛋白黑素、大豆异黄酮类等多种生理活性成分，它们均具有特殊的保健作用。

The thesis calcines process by the fact that the laboratory high temperature Stove simulates the rotary kilns producing ascent K2SO4 adds amounts H3PO4,calcination time and the kiln head calcine the temperature specifically for four kind of the mass affecting a titanium dioxide calcines a parameter mainly, take that white degree, eliminates the color force , PH value and attracts a water yield as main quality index ,adopt the homogeneous sample to follow the parameter having carried out an optimization on specially appointed composition and slanting mass metatitanic acid calcining the best calcination having tested, gaining a group of synthetical quality index.

本论文通过实验室高温炉模拟生产现场回转窑煅烧过程，针对影响钛白质量的四种主要煅烧参数K2SO4加量、H3PO4、煅烧时间和窑头煅烧温度，以白度、消色力、遮盖力和吸油量为主要质量指标，采用均匀是要法对特定组成和质量的偏钛酸进行了优化煅烧试验，获得了一组综合质量指标最好的煅烧参数。

The mechanism of organic wastewater treatment by using the thermophilic anaerobic microbe and the influences of temperature, pH value, loading rate, volatile fatty acid and the microbic carrier on the degradation process were discussed.

探讨了使用高温厌氧微生物处理有机废水的机理以及温度、pH值、有机负荷、挥发性脂肪酸、微生物载体等对有机废水处理工艺过程的影响。

Fumaric acid-containing wastewater was pre-treated by a method of microelectrolysis of iron and carbon , with the reaction time, pH value, temperature and ratio of iron to carbon studied.

采用铁炭微电解法预处理富马酸废水，研究了反应时间、pH值、温度、铁与炭的比例对预处理的影响，试验结果表明：当反应时间180min，铁炭比3∶1，反应温度313K时，CODCr去除率35。

The method is characterized in that:(1) the reflux of the 2-[N, N- 2amino]-3-cyano-group-4-thiopheneacetic-5-carboxylic acid tetra ester is carried out in the proper sodium hydroxide aqueous solution of alcohol for 5h to 6h and the pH value is kept over 10 during hydrolysis;(2) the ethanol of 20 per cent to 60 per cent is added and then the strontium chloride aqueous solution with 2times to 2.5times molal weight is directly added, precipitates the crystal, is filtered and dried;(3) water is added to carry out the reflux and the little salt packed in the crude product is removed, and the product is collected through heat filtration.

其特征在于：①将2--3-氰基-4-羧甲基噻吩-5-羧酸四酯在适量氢氧化钠水醇溶液中回流5～6小时，水解过程保持pH值10以上；②然后再加入20-60％乙醇，随后直接加入2-2.5倍摩尔量氯化锶水溶液，析出结晶，过滤，晾干；③加水回流，除去粗品中包裹少量盐，热过滤，收集产品。

The whole part of Moringa oleifera Lam had development and utilization value. Its leaves had abundant mineral elements, protein, amino acid, vitamin and other nutritional components. The seed of Moringa oleifera Lam had about 34% Moringa oil, 37% protein, sterol and other functional material.

辣木全株在很多方面都具有开发利用价值，辣木叶含有丰富的矿物元素、蛋白质、氨基酸和维生素等营养成分，辣木种子含有约34%的辣木油、37%的蛋白质以及甾醇等功能性物质。

The nickelous chloride both may use in to galvanize, and is prepares the galvanization chemical thionamic acid nickel the important raw material, lead is affects the electronickelling quality a important attribute, in the present industry 331 ion exchange resin deleading effect still could not arrive in the electronickelling the lead content standard, used pocket weak basicity resin XSC312 after the screening experiment determination to take from the nickelous chloride solution intermediate ion exchange except the micro lead resin, inspected the material fluid pH value, the contact duration in the ionic exchange column to the ionic exchange adsorption lead influence, has determined the resin adsorption capacity and inspected the resin analysis performance.

氯化镍既可用于电镀，又是制备电镀化学品氨基磺酸镍的重要原料，其中的铅是影响电镀镍质量的一个重要因素，现行工业中的331离子交换树脂除铅效果尚不能到电镀镍中铅含量标准，经过筛选试验确定采用大孔弱碱性树脂XSC312作为从氯化镍溶液中离子交换除微量铅树脂，在离子交换柱中考察了料液pH值、接触时间对离子交换吸附铅的影响，测出了树脂的吸附容量并考察了树脂的解析性能。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。