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- The acid and alkali are combined into salt. 酸与碱化合成盐。
- The acid and alkali are combined in salt. 酸与碱化合成盐。
- Acid and alkali are the basic concept of chemistry. 酸和碱是化学的基本概念。
- acid and alkali method 酸碱法
- The method of preparing ethylenimine with monoethanolamine(MEA),sulphuric acid and alkali is introduced in the paper. 本文介绍了以单乙醇胺、硫酸、碱等原料制备氮丙环的方法。
- The method of preparing ethylenimine with monoethanolamine (MEA), sulphuric acid and alkali is introduced in the paper. 摘要本文介绍了以单乙醇胺、硫酸、碱等原料制备氮丙环的方法。
- Cement retarder G101 is prepared by glucose , chloroacetic acid and alkali .The synthetic method and evaluation of G101 are presented . 介绍了G101油井水泥缓凝剂的研制方法,并对其性能进行了初步评价。
- The method of membrane cleaning is the hydraulic cleaning,acid and alkali cleaning,and the removal rate of membrane fouling is above 94%. 采用清水冲洗加次氯酸钠和盐酸溶液浸泡的方法能有效减少膜过滤阻力,去除率达到94%25。
- Extracting ribonucleic acid from discarded brewers yeast was studied and alkali method was compared with salt meathod. The result showed that salt method was better than alkali one. 摘要通过从啤酒废水生产的酵母中提取核糖核酸的实验，对稀碱法和浓盐法从操作步骤、产品产率等几方面进行比较，从而得出浓盐法优于稀碱法的结论。
- Abstract: The method of preparing ethylenimine with monoethanolamine （MEA）, sulphuric acid and alkali is introduced in the paper. 摘 要: 本文介绍了以单乙醇胺、硫酸、碱等原料制备氮丙环的方法。
- Soluble in water, acid and alkali solution, slightly soluble in ethanol. 溶于水、酸和碱溶液，稍溶于乙醇。
- It was concluded that both acid and alkali can promote the gelatinization,w... 可知酸、碱可以促进黑血糯的糊化,而蔗糖则有一定的抑制作用。
- It was able to endure oil ,acids and alkalis. 耐油，耐酸碱，耐腐蚀，抗拉伸，弹性好。
- The results indicate the mortar is highly resistant to acid and alkali medium. 测试结果表明:该树脂胶泥具有优良的耐酸耐碱性能。
- Regenerated oil was tested by the testing works. Comparing with the waste oil,after regeneration,liquefacient acid and alkali pH changed from 4 9 to 5 8,acid value from 0 0596 to 0 0057 mgKOH/g,and broken emulsifiability(stirring method)from 50 to 1min. 再生后的油送检测单位检验，再生前后对比：水溶性酸碱pH4－9/5－8，酸值0－0596/0－0057 mg KOH/g，破乳化度（ 搅拌法）50/1 min。
- The sole are resistant to most common acids and alkalis. 鞋底可防一般的酸及碱。
- The sealed media possess the features of innoxious, flavourless, leakproof, anticorrosive, able to endure acid and alkali, fireproof and insulation. 密封介质无毒、无味、不爬液、不腐蚀、耐酸碱并具有良好的阻燃和绝缘性能。
- Resound through inside the same industry by chemical mullite brick which has unique strong anti acid and alkali. 以独特抗酸碱腐蚀性强的化工莫来石而驰名业内。
- Advantage: Strong intensity, antifriction, wearable, anti-rotten, acid and alkali resistant, simple and portable, safety and applicable. 优点：强度大、耐磨、耐用、耐腐烂、耐酸碱，简易轻便，安全适用。
- The organic matter content of soil is relative with the buffer action of acid and alkali of soil. 此外，土壤有机质含量的高低与其对酸碱的缓冲能力成相关。
