查询词典 effective mass

The free radical scavenging properties of six Aloe species are to be investigated in some modified chemical system. The antioxidant was purified by silica column and thin layer chromatography and analyzed by HPLC. A fraction was purified from A. brevifolia Mill showed the most effective scavenging activities on 〓 and ·OH (66. 01% and 38. 98% respectively). With the analysis of IR spectrum, UV spectrum and mass spectrum, the structure of FA was identifed as 8-C-D-glucopyranosyl-2- [2-hydroxy] propyl-5-methyl-7-hydroxychromone. Its scavenging activity on free radicals is higher than that of aloe-emodin. Its antioxidant activity may be due to the phenoxyl on glucosyl chromone which can be react with free radicals and form relatively stable free radicals.

本研究利用分别产生超氧阴离子自由基和羟自由基的化学模型体系研究比较了不同品种芦荟提取物的清除活性氧自由基的抗氧化作用，进一步利用硅胶柱结合薄层层析法和反相高压液相色谱法，从短叶芦荟叶子中首次分离了具有较强自由基清除能力（超氧阴离子自由基和羟自由基清除率分别为66.01％和38.98％）的成分FA，利用红外光谱、紫外光谱和质谱等仪器分析结果推断出该活性成分的分子结构为8-C-吡喃葡萄糖-2-[2-羟基]-丙基-5-甲基-7-羟基对氧萘酮，它的自由基清除能力高于芦荟大黄素，是一种天然抗氧化剂。

it is a effective method to give the estimated values of mechanical component parameters reflected the body cushiony characters in the two-mass and one degree freedom system model with the system identification methods.

采用系统辨识方法可有效估算两质量－自由度系统模型中反映人体缓冲特性的力学元件参数估值。

By analyzing these data,it was concluded that:1The combustion of wood,including rate of heat release,total heat release,effective heat of combustion,mass loss rate,smoke ratio,specific extinction area,concentration of CO_2 and the yield of CO_2Y_(CO2,were decreased considerably by the treatment of FRW;2There is a strong synergistic effect of fire retardance between GUP and boric acid;3The trend of MLR curve of FZ was similar to its RHR curve,weight loss and heat release were happened mainly in flaming phase;4Char formation of wood was markedly accelerated by FRW,which indicated that catalytic charring effect of FRW on wood is the primary side in its fire-retardation mechanism.

对于组成和结构变异性很大的木材而言，由于CONE实验所使用的样品量相对于其他分析方法要大得多，因而实验结果比较有代表性。此外，CONE实验可在模拟火灾条件下进行，这是该方法的又一突出的优点[5～6]。木材阻燃剂FRW主要由磷酸脒基脲和硼酸组成，此外还含有

It is effective to treat patients with acute pelvic inflammatory disease without phlogistic mass by single antibiotic.

结果：无炎性包块组两种治疗方法的痊愈率、住院日无显著差异(P＞0.05)；有炎性包块组中西医结合治疗则明显优于西药治疗(P＜0.05)。

Ultrasonography is an effective, non-invasive and safe method to evaluate scrotal mass.

超音波对评估阴囊肿块是一种有效，非侵入性且安全的方法。

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。

Block theory is an effective method to analyse stability of rock mass crisscrossed by geologic structure planes.

对于由地质构造面纵横切割的多裂隙岩石块体的稳定分析，块体理论不失为一种有效的分析手段。

MyDesk 2.0 is the first really general visual and none-code programming system in the world. It can be used to create individuating and professional computer software without using computer languages.MyDesk 2.0 is a highly effective factory of software. A mass of standard ActiveX controls are its part fittings. Organizing and using different ActiveX controls reasonably, can carry out different actual applied functions, so it is a system with infinite extension.

这是使用MyDesk 2.0开发的多路摄像头监控系统，该产品可以流畅地同时接受 4 个摄像头的视频信息，如果有更多摄像头，可以在任意窗口随意选择没有被正在使用的摄像头，并且支持视频捕捉、截图等功能，录像保存为高质量的*。avi 文件，可用各种媒体播放或编辑工具打开，方便用户的二次编辑，图片则保存为*。jpg 文件，系统运行流畅，录像和图片质量高。

The traditional advertising mostly takes the approach of mass media and lacked the necessary communication of consumer psychology with audience; while omnipresent advertising mode of transmission can not ensure an effective advertising reach,"rather victimizes 1000, do not miss one" for the advertising costs and advertising results also powerless.

传统广告多采取大众传播的方式，与受众缺乏必要的消费心理沟通，同时铺天盖地的广告传播方式无法确保广告的有效到达率，&宁可错杀一千，不要放过一个&，对于广告成本和广告效果也同样无能为力。

The article has fully discussed the working status and functioning mechanisms of the shotcrete layer, reinforcement fabric, anchor bar and the advanced vertical high-pressure injective paste anchor pipe support, as well as the effective confining and supporting function on the deformation failure of the soil mass on the ground, in the side walls and beneath the foundation

文中充分论述了喷射混凝土面层、钢筋网、锚杆和超前竖直高压注浆锚管支护的工作状态和作用机理，及对地面、边壁内、基础下部土体变形破坏的有效限制和支护作用。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。