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The nuclear magnetic resonance imaging has been used in this work to study the deuterated solvent swollen coal, the cross-linked polyacrylamide hydrogel due to γ-ray irradiation and polystyrene in its θsolvent.

用核磁共振成象方法研究了溶剂中的溶胀煤、γ辐射交联聚丙烯酰胺水凝胶和θ溶剂中的聚苯乙烯。

It is both a chemonucleolysis bidentata resin eucaryote such as solvents, dilution is also thinner and sub- ureplasm of cosolvents.

它既是溶解树脂等高分子物质的真溶剂,也是起稀释作用的稀释剂和起潜溶作用的助溶剂

Once written, they resist a variety of solvents known to be used by forgers, as well as more mundane solvents like water.

一旦写上,不论是赝品伪造者用过的所有知名溶剂,还是更常见的溶剂--水,都不能将其擦掉。

XIN-3 three series of ultrasonic gas tank washing machine in addition to fullcleaning tank cleaning solvent to maintain clean.

XIN-3三槽系列此款超声波清洗机除完全具备双槽式超声波清洗机的特点外,更设有独立的溶剂蒸馏回收槽,使清洗槽溶剂长期保持清洁。

The new technology of applying organic solvent extraction method to extract ginger oleoresins from ginger was studied in this paper.

采用有机溶剂浸提技术对生姜提取姜油树脂的最佳工艺进行了探讨,结果表明,最佳溶剂为70%的乙醇,姜颗粒度为30目,浸泡时间为10h,料剂比为1:10,提取效果较好。

As the product of dilution solvent selective wide-e. g., atoleine, solvents, oils, oil, propylalcohol, glycollic, shuilin, etc.

由于该产品的稀释溶剂选择性较宽——如液体石蜡、溶剂油、机油、异丙醇、乙醇、水等。

The residual oil content of de-oil grapeseed meal reached 2% after 6No solvent extracting and under conditions, seed-solvent ratio of 1:1, extraction temperature 50℃ and extraction time 120 minutes.

葡萄籽经破碎、蒸炒后用6号溶剂油在溶剂比1:1、浸出温度50℃、逆流浸泡120分钟的条件下,可使粕中残油率降至2%。

Solvent extraction usually gives high yields of aroma compounds with easy operation; but there are many disadvantages, such as the loss of more volatile compounds in the process of solvent removal, the contamination of GC due to high-boiling and non-volatile materials in extracts.

溶剂萃取操作简单,香味化合物的收率高;但存在许多缺点,如除去溶剂的过程可能会造成许多挥发性成分的损失,萃取物中通常含有高沸点以及非挥发性的成分,对GC仪器造成损害等。

All of the three ether imides synthesized exhibited low inherent viscosity, high thermal stability of 456 to 499 oC in TGA measurement (5wt% loss/N2) with Tgs between 240 ~254 oC. They also show good solubility behaviors in N-methyl-2- pyrrolidinone, dimethyl sufloxide, dimethyl formamide, chloroform, and m-cresol.

所得聚醚亚醯胺高分子皆具如下相同之优点如:包括低固有黏度表现,其热性质上也具高隐定性,其TGA在氮气5 wt %重量损失测定可达456 ~ 499 ℃,其玻璃转移温度达240 ~ 254 ℃,在溶解度方面,它们皆可溶解於高极性有机溶剂如: NMP、DMSO、DMF,亦可溶於中极性之溶剂如CHCl3、m-cresol。

Companies are producing various specifications heptane, n-heptane, iso-octane, n-hexane, and environmental protection-type special solvent oil, 120 # solvent oil, industrial products and reagents, welcome customers at home and abroad came to negotiate and buy.

公司现生产各种规格的庚烷、正庚烷、异辛烷、正已烷、环保型特种溶剂油、120#溶剂油等工业品和试剂,欢迎国内外客户前来洽谈、选购。

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