查询词典 essential

Dependent on the past research in seaice, in Bohai Sea, in 2003-2004 winter and 2004-2005 winter with level ice for the target we open the field experiments to study the essential spectrum characteristic of ice, removing by testing means various nonessential factor for sea water in the fixing big ice plate, building up 170 growth conditions to look like under the natural condition, the growth expect different sample series; in 2004-2005 winter and 2005-2006 winter continue two pass to break thorough Bohai Sea in the ship to collect 59 sea ice sample that have the non-essential ice factors in winter, open the influence research that the field hangs sand to contribute to the spectrum of the ice body; in 2005-2006 winter, fast ice to open the field spectrum curves to coast and analytical research.

总结前人的研究成果和开展一系列的室内实验，在渤海—北半球纬度最低的结冰海域，于2003/2004、2004/2005 连续两个冬季以单层平整冰为目标开展实验研究一年生海冰的冰体本质光谱特征，在固定冰盘上以实验手段摒除各种光谱干扰因素，在自然条件下建立170 个生长条件近似、生长期不同的样本系列；于 2004/2005、2005/2006 连续两个冬季通过破冰船深入渤海采集59 个具有非冰体本质因素的海冰样本，开展悬沙对冰体反射光谱的影响研究；于2005/2006 冬季，针对沿岸固定冰开展光谱测量和分析研究。

A new technology, Supercritical Fluid CO_2 Extraction, was also supplied to study the plant. The technological parameter was optimal. Total extract of SFE-CO_2 were 4.86 times of the essential oil extracted by SDE, main active extracted constituents were 1.36% high than SDE. The chemical constituents of SFE-CO_2 were also analyzed by GC-MS. 57 constituents were identified, 29 constituents of them were first discovered. 24 constituents were discovered in two extract. Fingerprint is a good technology to elevate the quality of herb medicine. The main active fraction can be extracted by SDE and SFE, Fingerprint was studied respective, chromatographic parameter was acquired. 22 peaks were assigned common peaks in the spectrum of essential oil, 17 peaks were assigned to common peaks in the spectrum of SFE extract.

采用现代共性关键技术超临界CO_2萃取技术，通过正交试验，优选了超临界CO_2提取牛至挥发油的工艺，并与传统的水蒸气蒸馏法进行了比较研究，结果显示：前者提取有效部位的收率为后者的4.87倍，主要有效成分的转移率是后者的1.36倍；采用GC-MS分析方法和NIST质谱库检索，对SFE和SDE所提化学成分进行比较，SFE分离鉴定了57种化合物，占提取物总含量的86.96％，其中29种化合物为首次从该植物中鉴定；后者分离鉴定了69个化合物，占提取物总量的98.28％，其中27种化合物为首次从该植物中鉴定；两种方法的提取物中共有成分25种，包括主要有效成分麝香草酚、香荆芥酚、对聚伞花素等。

There is an essential to this, and there are another essential to that.

有一个重要的这一点，并且有一个至关重要的。

Not all identity of ethnic group have essential factor, different identity essential factor in a concrete race group.

在每一个族群的认同中并非都具备所有的族群(来源：A7646BC论文网www.abclunwen.com)认同要素，而不同的认同要素在具体的一个族群的认同中起的作用也各不相同，族群认同具有多样性。

To investigate the effect of high temperature treatment on essential oil in fennel ,fruit of fennel was held at three temperature(40 ℃,60 ℃,80 ℃) and 25 ℃ for 7 days,then extracted essential oil and identified components by GC/MS.

结果表明：随着温度的升高，精油含量与主要成分的相对含量均呈先升高再降低的趋势，其中精油含量依次为0.93、3.04和3.17和1.51ml。

There was obviously negative revelance between essential oil and content of full nitrogen, proteinic nitrogen. In a word, 1n concentration N,P,K was fit to improve quality and yield of essential oil of fennel, increasing or decreasing concentration of N,P,K all decreases them.

以提高茴香精油产量和品质为目的的栽培应以标准配方的氮、磷、钾浓度来施肥，增加或减少它们的浓度都会导致精油产量和质量的降低。

In this thesis we carried on the preliminary study to the extraction process of plant essential oil, and measured the biological activity of plant essential oil on red flour beetle, Tribolium castaneum and the housefly, Musca domestica vicina.

采用三因素四水平正交试验设计对植物精油进行提取工艺研究，最佳提取工艺条件是A_2B_3C_3，即50g供试植物加入1000ml水，水蒸气蒸馏120min后，用石油醚萃取，萃取液浓缩以后得到的精油可获最大收益。

Objective: The constituents of essential oils were extracted from Lophatherum gracile Brongn. and analyzed by GC/MS technology. Methods: The essential oils were extracted from L.gracile Brongn.

目的：采用3种方法提取淡竹叶中的挥发油，利用气相色谱-质谱联用技术全面分析其挥发油中的化学成分。

Body slimming essential oil Contain Grapefruit, Cypress, Hackmatack and Thyme essential oils-Evening Primrose oil.

含葡萄柚、丝柏、杜松、百里香、月见草油等成分。

Our study demonstrates that FHL2 is essential in modulating the physical state of vSMCs, which is essential in regulating vascular motor function, says Hata.

我们的研究证实FHL2在调整vSMCs生理状态中是必要的，后者是调节血管紧张性功能的要素。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。