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碱化

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Using refined cotton, chloroacetic acid, sodium hydroxide and hydrogen peroxide as main feedstock, sodium carboxymethyl cellulose was made by the process of basification, etherification, abstersion and drying.

以精制棉、氯乙酸、氢氧化钠和过氧化氢为原料,经过碱化、醚化、洗涤、干燥,制得羧甲基纤维素钠。

In the present study, we investigate the effect of acidification and alkalinization on primary culture of rat cardiomyocytes.

在本研究中,我们以较广泛的角度,观察初代培养的心肌细胞内的酸化或是碱化对於细胞产生死亡机制的影响。

The obvious change of properties of alkali soil is due to the decrease of soluble salt content after the growth of P.

星星草使碱化土壤化学性质发生较明显的变化是降低了可溶性盐含量。

Elution: use NH4OH to alkalify resins, the reaction formula is as follow

洗脱:将树脂用NH4OH碱化后,此反应如下

Original, in the bedroom no matter new fence or old wall, because moisture is overweight,can contain alkalify question, the environmental circumstance in moisture blame very, it is the prime cause that affects lacquer face quality.

原来,居室里无论新墙或旧墙,都会因水分过重带有碱化问题,在潮湿的环境情况尤甚,是影响漆面质量的根本原因。

Alkalify dried resin with 10- 12ml ammonia water,lay it

用氨水 10 -12 ml碱化,闷置20 min后挥散多余NH3。

Develop to promote agriculture to be able to last, the key catchs the construction of good agriculture infrastructure, ladder be changinged and drought are made, the promotion with section agrotechnical water, the construction of zoology agriculture, prairie sand is changed, all directions face such as alkalify, degenerative processing and protection works.

为促进农业可持续发展,重点抓好农业基础设施的建设,被改梯及旱作、节水农业技术的推广,生态农业的建设,草原沙化、碱化、退化的治理和保护等四方面工作。

Summed up the research progress that exceeds critical and extractive technology to apply at alkaloid to depart, analysed each elements of effect of influence alkaloid depart, outside waiting for common element except temperature, pressure, dissolvent, extractive time, alkalify reagent can improve the detached result of alkaloid, carry secretly agent rose to exceed the capacity of critical and extractive fluid.

综述了超临界萃取技术应用于生物碱分离的探究进展,分析了影响生物碱分离效果的各个因素,除温度、压力、溶剂、萃取时间等常见因素外,碱化试剂能够改善生物碱的分离效果,夹带剂则提高了超临界萃取流体的能力。

When produce dense sodium carbonate with the material of natural alkali,a plenty of alkaline scrap material or alkaline mud which can alkalify the earth ,pollute the air and environment is manufactured ,using the scrap material by calcine with a large movable kiln is expensive.

在以天然碱为原料生产重质纯碱时,伴生大量碱性废渣,此废渣堆放或坑埋,碱化土壤,污染环境和空气,若用大型回转窑煅烧处理,成本高不经济。

Current density, realkalisation time and concentration of sodium carbonate solution have significant effect on the bond strength after FRT.

采用拉拔试验,考虑到电流密度、再碱化时间、碳酸钠溶液浓度等因素研究了再碱化后钢筋混凝土的粘结强度。

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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。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力