查询词典 extraction

According to the results of the former study in our laboratory, trans-1, 2-cyclohexanediol is produced with a lot of acids and water, for extraction of trans-1, 2-cyclohexanediol from the solution, ethyl acetate and butyl acetate were used as extraction reagents, the solubility data of the trans-1, 2-cyclohexanediol in corresponding mixed solvents of some sorts of acetates and water are needed.

根据本实验室前期研究结果可知，反式-1，2-环己二醇是在酸性和大量水存在的条件下得到的，为了把反式-1，2-环己二醇从反应液中萃取出来，本工艺所采用的萃取剂是乙酸乙酯和乙酸丁酯，需要获得反式-1，2-环己二醇在这些酯类与水混合溶剂中的溶解度数据，因而对反式-1，2-环己二醇进行相关固液相平衡的研究是非常迫切和必要的。

The process of extraction of flos sophorae buds dyes was studied and the optimum conditions (temperature 90℃, dye concentration 200 g/L, time 30min) of colourant extraction were decided by orthogonal experiments and single factor analysis.

通过正交试验及单因素分析确定了最佳萃取工艺条件为：温度90℃、染料质量浓度200 g/L、时间30 min。

The process of extraction of tangerine peel was studied and the optimum conditions (temperature 80℃, dye concentration 200 g/L, NaOH concentration 40 g/L, time 30 min) of colourant extraction were decided by orthogonal experiments and single factor analysis.

通过正交试验及单因素分析，得出桔子皮最佳萃取工艺条件：温度80℃、染料质量浓度200g/L、氢氧化钠质量浓度40g/L、时间30min。

When a pile of poop discovered in an Oregon cave in 2002 was retested this year thanks to new techniques in DNA extraction, excited researchers determined that the ancient feces — officially called coprolites in polite archaeological terms — were human and were more than 14,000 years old, marking the earliest evidence of human presence in North America by almost two thousand years. Other bits and pieces of cultural material have turned up in the Americas and called the date into question, but the coprolites are the oldest of definite human ... extraction.

今年科学家对2002年在俄勒冈州一个洞穴发现的一堆粪便使用DNA提取新方法再次进行检查，他们惊喜地发现这堆粪便，也称粪便化石是人类的粪便，距今1.4万年之久，这标志着人类在北美存在的最早证据提前了两千年。

The research progress of extraction methods of ursolic acid from fructus corni are summarized and supercritical extraction method is compared with traditional solvent method.

对山茱萸中熊果酸提取方法的研究进展状况进行了综述，并将超临界二氧化碳萃取方法与传统溶剂的提取方法进行了比较。

The maximal extraction yield of polysaccharide from F. Corni would be obtained by using optimized extraction technology parameters.

结论］利用优化工艺参数提取山茱萸多糖时具有最大的提取产量。

ConclusionIt is the first time that uniform design is used to optimize extraction conditions of polysaccharide. The extraction rate of polysaccharide is high. Phenol-vitriolic colorimetry was a stable and reproduciable method to determine content of polysaccharide in Fructus Corni.

结论首次运用均匀设计优化山茱萸多糖的提取条件，提取得率高，苯酚-硫酸比色法测定山茱萸多糖含量稳定性、回收率较好。

In the feature extraction stage, methods of extracting geometrical and statistics are introduced in this paper, which include geometrical extracting method, singular value decomposition, linear discriminated analysis, discrete cosines transform, feature extraction based on wavelet analysis.

重点介绍了本论文所使用的主分量分析和定点独立分量分析的方法，定点独立分量分析是一种基于高阶统计信息的特征提取方法，收敛速度快克服了一般ICA收敛慢的缺点。

Mouse genotype and C.rat genotype respectively,by RFLP and gene sequencing technique.The extracting effect of the imported commercial DNA extraction kit was the best,and the copies of COWP gene were(6.450-9.861 )×10~6 in the extraction.

Real-time PCR技术测定不同浓度NTZ和GAs作用后COWP基因拷贝数，透射电镜观察NTZ和GAs对虫体生长的影响。

Qingdao Foundry Machinery Group Company, China and NEOTECHNIK GmbH, Germany newly cooperate on business and supply NFS back-blow type air filters to meet general requirements of various industries on dust extraction. The equipment particularly resolves the problems of dust collection and extraction andsmells removal in cupolas, furnaces, ovens and refine furnaces

产品/Product：青岛铸造机械集团公司与NEOTECHNIK公司最新合作成立的尼欧迪克除尘设备有限公司，在国内推出满足各个工业领域对除尘系统的一般要求的NFS反吹空气净化表面除尘设备，并专门解决铸造和铸钢厂中熔炼炉，诸如：冲天炉、电炉、转炉和精炼炉等的除尘、灰尘收集和异味消除等特殊难题。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"