constituent 六级考研雅思GREGMAT

Hydrogen and oxygen are the constituents of water.

氢和氧是水的主要成分。

ObjectiveTo study the chemical constituents of essential oil from Daucus carota L.from Guizhou Province.

目的分析鹤虱风挥发油成分。

There are three great constituents of modern education - the classics, modern history and literature, and science.

现代教育有三大内容 - 古典文学、现代历史和文学、以及自然科学。

The constituent and properties of the meltable polyimide adhensive and others are introduced.

本文介绍了可熔性聚酰亚胺胶粘剂与其他二种胶粘剂的结及使用特点。

It is noticed that oleanane triterpenoidal saponins are characteristic constituents of this family and have taxonomic significance.

结果表明齐墩果烷型三萜皂甙作为木通科的特征化学成分在该科的系统分类中具有一定的意义。

There were 17 same constituents in the two samples.The main constituents of them are decanal, dodecanal, 1-dodecanol.

二者相同的化学成分有17种，主要是癸醛、十二烷醛、十二烷醇等。

Twenty-six chemical constituents were identified by GC-MS.The relative content of docosane was the highest.

【英文摘要】 The volatile oil was obtained from the seed of Fibraurea recisa pierre by steam distillation.

Aloe chromone is a group of anti-inflammatory and anti-tyrosinase constituents found in aloe vera leaves.

芦荟色酮是在芦荟叶中特有的一类具有抗炎和抑制酪氨酸酶等作用的活性物质。

Lycorine is a kind of alkaloid constituent which is highly-contained in plant medicine Lycoris radiata.

摘要石蒜碱是传统药用植物石蒜中含量较高的生物碱成分。

The minister's constituents feel that he does not spend enough time dealing with their problems.

选民认为那位部长并没有花上足够的时间去处理他们的问题。

Mineral constituents consist mainly of jadeite, aegirine-augite, magnesio-riebeckite, winchite, magnesio-hornblende, actinolite, quartz, albite, rutile and sphene.

主要组成矿物为硬玉、霓辉石、镁纳闪石、蓝透闪石、镁角闪石、阳起石、石英、钠长石、金红石和榍石。

The carbonization of exrtacting constituents of preheated Shenfu noncoking and Liulin dominant coking coal has been studied.

对预热神木不粘煤及柳林主焦煤中不同溶剂抽提组分的碳化特性分别进行了比较研究。

Constituents that can be substituted for one another without loss of grammaticality belong to the same syntactic category.

可以相互替换而又不改变语法属性的成分属于同一句法类型。

Objective:to study the chemical constituents of the essential oil of Inula helenium L.were extracted by steam distillation(SD)and supercritical-CO2 fluid(SFE).

研究土木香挥发油的化学成分,并比较水蒸气蒸馏提取(SD)与超临界CO2萃取(SFE)所得土木香挥发性成分的差异。

Quartz, zircon, magnetite, gold are major constituents of littoral placers in Shandong province, while shell, ballstone, ilmenite, rutile being secondary.

山东省滨海砂矿以石英、锆英石、磁铁矿、砂金等为主,其次为贝壳、球石、钛铁矿、金红石等。

Objective:To apply conidia of Pyricularia Oryzae to the screening of antimitotic constituents from marine animal sea hare.

利用稻瘟霉生物活性成分跟踪筛选模型,筛选海兔中抗有丝分裂活性成分。

And the chemical constituents of Stachys geobombycis was primarily demonstrated according to precipitadon reaction or color reaction with various indicator.

地蚕中可能含有生物碱、黄酮及其苷类、多糖、有机酸等成分。

Conclusion: The main constituents of the volatile oil in Rubus chingii Hu are hexadecanoic acid (28.23 %) and ambrettolide (26.24 %).

覆盆子挥发油主要成分为正十六酸、黄葵内酯,分别占挥发油总量的28.23%和26.24%。

13 fatty acids components, 2 sterol and phytol ones were identified from R. dentatua L., amounting to 86.03% of the total constituents.

从齿果酸模中分离鉴定了13个脂肪酸成分、2个甾类成分和1个植醇，占色谱总馏分出峰面积的86.03%。

The chemical constituents of pod of Gleditsia sinensis Lam. have been studied.The saponin, fibrin, half fibrin, xylogen and proteins of it have been mensurated.

初步研究了皂荚中所含的化学成分,测定了皂甙、纤维素、半纤维素、木质素、果胶、蛋白质相对于绝干皂荚的质量百分含量。