weak alkali soda drinks 弱碱苏打水饮料
Weak acid weak alkali resistant 耐弱酸弱碱
Weak alkali and soda drinks 弱碱苏打水饮料
weak alkali system 弱碱体系
weak alkali conditions 弱碱性条件下
exceedingly weak diabasic alkali 极弱二元碱
alkali titrate weak acid 强碱滴定弱酸
The flooding effect of ASP is studied in third class oil layer. The surfactant concentration of weak alkali ASP ranges from 0.0166% to 0.4% to reach ultra-low interfacial tension by laboratory evaluation of weak alkali ASP.
又探讨了三类油层的三元复合驱油效果,通过弱碱三元体系室内性能评价,确定了弱碱三元复合体系产生超低界面张力表面活性剂的浓度范围为0.0166%～0.4%、Na_2CO_3的浓度范围为0.4%～1.2%,并通过表面活性剂吸附量对界面张力的影响,确定了经过多次吸附后,石油磺酸盐弱碱三元复合体系仍然具有较低的界面张力。
参考来源 - 杏北油田萨尔图油层提高采收率技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Water, sea water, hot water, compressed air, weak acid, weak alkali etc.
压缩空气、水、海水、热水、压缩空气、弱酸弱碱等。
Methods Chalcone derivatives were synthesized from benzaldehyde derivatives and acetophenone by using weak alkali potassium carbonate as based catalyst in water via phase - transfer catalysis.
方法以苯甲醛衍生物和苯乙酮为原料，弱碱碳酸钾为催化剂，水为溶剂，用相转移催化法合成查耳酮衍生物。
The research results showed that the modified film had good anti-corrosion performance in weak acid, neutral solution containing Cl- and strong alkali.
研究结果表明，联苯胺修饰膜对工业纯铁有很好的保护作用，在弱酸性、氯化钠以及强碱性介质中有良好的阻蚀性能。
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