查询词典 algebraic fraction

Batch and semi-continuous oxidation of p-xylene to terephthalic acid in oxygen-enriched atmosphere with volume fraction of oxygen from 21% to 80% were investigated.

在体积分数为21%~80%的富氧空气中进行对二甲苯的间歇和半连续氧化反应，获得了富氧条件下对二甲苯氧化反应的固相中间产物(对羧基苯甲醛、对甲基苯甲酸)含量的变化规律。

The accession of ten eastern European countries to the EU has also tapped into an in ternal European supply of scientists and technologists who are willing to work for a small fraction of the cost of their pampered western neighbours.

新加入欧盟的 10 个东欧国家也加强了欧洲内部的科学家和技术人员的供给量。这些人乐意以更低的成本为那些较富裕的西欧邻居们工作。

According to the geochemical characteristics of Upper Palaeozoic oil and the relationship between the above characteristics and hydrocarbon resource meks of Carboniferous coal series in Konggu-4 well in the Huanghua depression, this paper elaborates the "fingerprints" of sterene and terpane in saturated hydrocarbon fraction from Tertiary oil.

通过对黄骅孔古4井上古生界原油的地球化学特征及其与石炭系煤系烃源岩的亲缘关系研究，特别是与奥陶系原油、灰岩、下第三系原油饱和烃的甾、萜烷精细&指纹&对比研究后，我们认为孔古4井原油应属于上古生界煤系地层自生自储的原生油气藏，而并非下第三系抑或下古生界碳酸盐岩所生。

One fraction is Amelie lead an old blind man to MRT entrance, in the very few minutes she described all she could see in a unbelievable fast frequence, the special structure of the building, the food name, color, teste...

一个情节是她带领一位盲人过马路。

Tetrazine ring is an energetic nitrogen hexa-heterocyclic group with nitrogen mass fraction of 68.3%,so it is a very effective structure unit in the design of high energetic,insensitive materials.The tetrazine high-nitrogen energetic materials are new kinds of ones researched and reported widely at home and abroad in recent years.

四嗪环是一种含氮质量分数达68.3%的六元氮杂环含能基团，是设计高能钝感含能材料中非常有效的结构单元；四嗪类高氮含能材料也是近年来国内外研究和报道较多的一种新型含能材料，部分具有生成焓高、热稳定性好和感度较低等特点。

ConclusionGlucosinolate is the active fraction of Thlaspi arvense Linn and it has good antitumor effects.

结论硫代葡萄糖苷是寨卡抑制肿瘤增殖的有效部位，具有一定的抗肿瘤活性。

ObjectiveTo extract and identify the active fraction of the seeds of Tibet Medicine Thlaspi arvense Linn.

目的分离鉴定藏药寨卡的有效部位并对其抗肿瘤活性进行初步研究。

Was glucosinolate,and it could evidently inhibit the tumor propagation of the two kinds of animal models.conclusionglucosinolate is the active fraction of thlaspi arvense linn and it has good antitumor effects.

经抑瘤实验表明，其能明显抑制s180荷瘤小鼠和ct-26荷瘤小鼠的肿瘤增殖。结论硫代葡萄糖苷是寨卡抑制肿瘤增殖的有效部位，具有一定的抗肿瘤活性。

And to study its antitumor activities. MethodsThe active fraction of Thlaspi arvense linn was extracted and identified by nethanol-extraction,tart-Al2O3 colum chromatography,TLC and HPLC.

方法采用甲醇萃取、酸性氧化铝层析柱层析和谱图分析对寨卡有效部位进行分离提取和鉴定，采用S180荷瘤小鼠模型和CT-26荷瘤小鼠模型，探讨寨卡有效部位提取物的抗肿瘤活性。

With a trimodal fraction of 200μm, 30μmand 2μm AP, it was possible to achieve p roces2sable p ropellants with 83% and 84% solid load2ing.

将汉语中一个单句译成两个或两个以上的简单句。例13 用200μm， 30μm和2μm三种AP可得到83%和84%固体装填的可加工推进剂。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48