查询词典 EF

To solve the problem of instability when the ratio of samples differ greatly,an improved formula for the method of ratio estimator is put forward by means of clustering,which can reduce the ef.

在抽样技术比例估计与均值估计的基础上，提出了抽样技术的比率估计法，并对其作了详细的分析，同时，通过具体问题的讨论，说明了比率估计法所具有的优越性；针对各个样本比值有比较大的差别时所产生的不稳定性，运用聚类分析的方法提出了具体的比率估计法的改进公式，减少了噪声数据的影响，得到了较高的准确度

This study measured the isovolumic contraction time , isovolu-mic relaxtion time and ejection time of CCP group and normal contrast group. Late,tei index was calculated, relationship between Tei index and LV function index such as ejection fraction ,the ratio of transmitral peak velocity at early diastole to transmitral peak velocity at late diastole etc.

本研究通过对正常对照组与肺心病病例组使用频谱多普勒超声心动图测量ICT、IRT、ET时间计算Tei指数，观察肺心病左心室Tei指数变化并分析其与超声测定的心功能指标EF、E/A等相关性，探讨Tei指数评价肺心病左心室整体功能的价值。

The assessment results can be used to tentatively determine the disparity in the water resources renewability of the assessed regions,and serve the function of guidance in how to make ef...

根据计算结果，能够初步确定评价区水资源可再生能力的强弱性，将为如何有效地利用水资源，避免水环境的恶化起到一定的指导作用。

FN and LN(the non-collagenous index) out of ECM were measured by immuno-histochemistry mean, and the accumulation of ECM was measured by type I amd III coHagen, a -SMA was chosen as a symbol ef .the activated reposit fat cell.TGF- P1 was chosen as a symbol of th ieccellular factor made the reposit fat cell activated.We observed the mi sclnanism of 286 through the variety of the upper indexes during the experiment.

用免疫组化方法测评肝细胞外基质中的非胶原指标FN、LN，胶原指标Ⅰ、Ⅲ型胶原等在实验过程中的变化作为判定ECM沉积增多的事实指标；用a-平滑肌肌动蛋白作为贮脂细胞被激活的标志物指标；用转化生长因子-β_1(TGF-β_1)作为激活贮脂细胞的细胞因子指标；通过观测上述指标在实验中的变化，来探讨"268方"的作用机理。

Finally, from the view of application layer, the paper discusses how to ef?cientlycombine the dynamic maintenance with two important technologies (including virtualworkspace service and interoperations) to resolve con?icts from increasing massiveVO users and resourceless problem in grid.

最后，从应用动态维护技术的角度出发，探讨动态维护技术与网格计算中的两个主流趋势如何进行有效结合，来缓解由于大量虚拟组织用户访问网格基础架构时可能产生的资源匮乏矛盾。

Sex-linkage model reveals that hybrid vigor rate is a complex function related withdominance of gene effects of hybrid,additivity and dominance of the parent genes,and ef-fects of sex-linked genes.Owing to interaction of genes and environment,hybrid vigor ratevaries with seasons.

性连锁模型揭示，杂种优势率是一个与杂交种的显性效应、亲本的加性效应、显性效应、性连锁效应等基因效应有关的复杂函数，由于基因与环境的互作，造成杂种优势率在不同季节表现不一致。

A modest spur to induce others to come forward with valuable contributions; throw a sprat to catch a whale

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So the depth(20-40cm)of fertilizer application could be as best depthfor delaying the senescence of flag leaf and root system and gainning highyield and high efficiency in dry land wheat.5 The effects of deep cultivation-root cutting on the senescence after an-thesis and yield had been studied in dry land wheat of high yield.the best ef-fect obtained from treatments by deep cultivation-root cutting in beforewinter stage,next by the treatment in the starter stage treatment and in con-trol,lastly by the treatment in the before winter stage and starer stage.

由此认为延迟旱地小麦根系与旗叶衰老并获得高产的施肥深度应在20-40cm左右。5深耘断根对旱地高产小麦花后衰老及产量的影响进行了研究，以冬前深耘断根最好，起身期深耘断根与对照次之，冬前和起身期都深耘断根效果最差。

"If you live both near a freeway and in an area of higher air pollution, our results suggest that you're getting, in a sense , a doubling of the ef fect--both the regional pollution levels that the children are breathing as well as the air they breathing, that is coming out of the tail pipe."

"如果你们都住在公路附近，而且在一个空气污染更严重的地区，我们认为，从某种意义上讲，你会得到加倍的影响，呼吸着区域性的被污染的空气和汽车排气管中排除的废气。"

For this is thankworthy, if a man for conscience toward God endure g***ef, suffe***ng wrongfully.

2：19 倘若人为叫良心对得住神，就忍受冤屈的苦楚，这是可喜爱的。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。