查询词典 extraction

Based on theoretical analysis, kinetic models on boiling extraction and ordinary extraction process are presented.

本文分别建立了沸腾浸取和普通浸取两过程的数学模型。

In the previous ofspicy camphor rhizospheric soil water extraction of vegetable seed germination of allelopathy effect is designed on the basis of plant water ofspicy camphor, leaching solution of experiment, the experimental design confirmed ofspicy camphor plant roots, stems and leaves of radish extraction of seed germination of all have certain effect.

在前人的香樟根际土壤水浸提液对蔬菜种子发芽具有化感作用效应的基础上，设计出香樟植株水浸提液的化感试验，该实验设计证实了香樟植株的根、茎、叶水浸提液对萝卜种子的发芽都具有一定的化感作用效应。

Study on the effects of the pressure, temperature and time on the extraction rate of the essence oil from the cinnamon by supercritical CO2 extraction.

研究了超临界CO2萃取肉桂精油时压力、温度、萃取时间等因素对提取效果的影响，通过正交实验确定最佳的萃取工艺条件为：萃取压力15MPa，温度40℃，时间2h，此条件下肉桂精油的产率为3.69%。

Steam distillation and supercritical CO2 fluid extraction were used to extract cinnamon oil to establish the optimal technica1 condition for the extraction of cinnamon oil.

优选萃取肉桂油的工艺条件，分别采用水蒸汽蒸馏法和SFE-CO2提取肉桂油，进行SFE-CO2萃取肉桂油的正交试验，优选最佳萃取条件。

of increasing the use of space law and crown law chop lower third-molar extraction of 128 cases, and two methods in the extraction operation of complications were lunwen114compared.

方法运用增隙法和劈冠法拔除下颌阻生智齿128例，并对两种方法在拔牙术中的并发症进行比较。

The effct of operating conditions on the recovery of cobalt and manganese acetates was studied.The experimental results indicated that the recovery can arrive to 85%under the conditions of extraction temperature 80℃,extraction time 30—45min,liquid-solid ratio 9∶1 and crystallization temperature 5℃.

研究了操作条件对醋酸钴和醋酸锰回收率的影响，实验结果表明：在萃取温度80℃，萃取时间30～45min，液固比9∶1，结晶温度5℃，分三级萃取结晶的条件下，醋酸钴和醋酸锰的回收率达85%。

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。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。