不平均的

For Berkshire's shareholders, myself included, the cost of this thumb-sucking has been huge. o Our consistently-conservative financial policies may appear to have been a mistake, but in my view were not. In retrospect, it is clear that significantly higher, though still conventional, leverage ratios at Berkshire would have produced considerably better returns on equity than the 23.8% we have actually averaged. Even in 1965, perhaps we could have judged there to be a 99% probability that higher leverage would lead to nothing but good. Correspondingly, we might have seen only a 1% chance that some shock factor, external or internal, would cause a conventional debt ratio to produce a result falling somewhere between temporary anguish and default.

另外我们一贯保守财务政策可能也是一种错误，不过就我个人的看法却不认为如此，回想起来，很明显的我们只要能够再多用一点财务杠杆操作(虽然较之他人还是很保守)，就可以得到远比现在每年平均 23.8%还要高的投资报酬率，即使是在 1965 年我们也可以百分之九十九地确定高一点的财务杠杆绝对只有好处没有坏处，但同时我们可能也会有百分之一的机会，不管是从内部或是外部所引发令人异想不到的因素，使得我们负债比率提高到介于一时冲高到负债倒闭之间。

It is pointed out that the medical consumption is unaccommodated to the GDP average of the people. At the same time the empirical study shows that the conclusions in the work are more practicability and operability.Finally, the concluding remarks are presented. It is pointed out that problems are still explored about the DEA. The developing prospect of the DEA is also depicted according to the research effort.

利用所得结论探讨中国各省市医疗机构的收费与国民平均GDP的适应度，所得结果反映出当前我国医疗保健与经济发展不相适应的现状；同时也说明研究结论具有更强的实用性，更高的操作性；最后，总结全文的工作，提出仍需研究的一些问题，展望数据包络分析的发展前景。

This relationship between body composition and cognitive function in old age is still unclear, the authors write. To address this question, the researchers used data from the Chicago Health and Aging Project, a longitudinal study conducted from 1993 to 2003 in a biracial community on the south side of Chicago, with an average of 6.4 years of follow-up. The cohort included 3885 community-dwelling adults aged 65 years and older who participated in at least 2 assessments.

作者表示，年长者的身体组成和认知功能之间的关系仍不清楚，为了找出此问题的答案，研究者使用芝加哥健康与老年计画「Chicago Health and Aging Project 」的资料，从1993到2003年，在芝加哥南部的一个双种族社区进行纵向研究，平均追踪期间为6.4年，该世代包括3，885位居住於该社区的65岁以上住民，且参加至少2次评估。

Sorghum, sudenese grass and orchard-grass (Dactylis glomerata L.), and the application of MeJA for the flowering synchronization of male sterile and restorer lines was investigated in seed production of hybrid rice.

外源MeJA强烈诱导稻、高粱、苏丹草和果园草等禾本科植物的颖花开放：早稻297的离体穗在经40μmol/L，400μmol/L和4mmol/L的MeJA溶液浸穗 2min处理后80min，在对照颖花开放尚未启动时，平均每穗颖花开放率分别达 7.5％，22.7％和44.5％；杂交稻安湘S-株173的连穗经4mmol/L的MeJA溶液浸穗2min处理后80min，开颖率达32.5％；不育系也能响应MeJA的诱导，经1mmol/L MeJA处理后，80min时开颖率达42.9±6.1％。

Rifling-treating is a key technique because rough rifling adds difficulty to image processing. So the rifling-treating uses the method of area gray-scale average, which makes up the incontinuity of image. Image segmentation aims to separate the defects from the background.

膛线的处理是火炮内膛缺陷处理的关键之一，它的凹凸不平给图像处理带来极大的困难，采用区域灰度值平均法，较好的克服了图像的不连续性。

The mechanical properties of coal filled polymer composites The mechanical properties of coal/PP composites were investigated, and the effects of coal rank, particle size, surface modification of coupling and alkylation were discussed. The results show that the anthracite and bituminous coal all can be used as filler of plastic after pretreatment of part devolatilization and surface modification; The modulus of composites increase with the content of coal filler; The coupling agent is of no effect for reinforcing the coal/PP composites, except that there are new oxygenous function group forming on the surface in the process of pulverizing; The F-C alkylation reinforce coal (under 10μm)/PP composites obviously.

4煤填充高分子复合材料力学性能超细煤粉填充聚丙烯复合材料力学性能的研究结果表明，烟煤和无烟煤经过脱除部分挥发分的预处理后，都可用于与塑料共混制备复合材料；偶联剂改性对低变质程度烟煤/聚丙烯复合材料的力学性能基本不起改善作用，而对于经气流超细粉碎后的小粒径高变质程度烟煤及无烟煤则有一定的增强作用；烷基化改性在煤表面接枝了烷基，使平均粒径小于10μm的煤/聚丙烯复合材料拉伸屈服强度普遍提高，煤填充高分子复合材料可在较高含煤量情况下维持良好的力学性能。

As George Bernard Shaw puts it,"The maternal instinct leads a woman to prefer a tenth share in a first-rate man to the exclusive possession of a third-rate one." Despite the fact that humans are naturally polygynous, most industrial societies are monogamous because men tend to be more or less equal in their resources compared with their ancestors in medieval times.

正如George Bernard Shaw 所说，&母姓的直觉会导致一名女人宁愿选择要&一流男人&的十分之一，也不愿意要独自占有&三流男人&的全部&尽管说人类自然会选择一夫多妻，但是，大部分的工业化国家都是一夫一妻，因为那里的男性往往和自己在中世纪的祖先相比在资源方面要或多或少地更加平均化。

After doing a simulation burning experiment on 18 kinds of straw residue which are common fuel for biomass power plant, the result shows that straws ash content is 9.33% generally and its composite are mostly composed of Silicate(25.85％), Calcium(23.34％), Potassic(17.47%).

对于生物质发电厂常用的18种秸秆燃料进行的高温（550℃）模拟燃烧实验表明，秸秆的平均灰分含量为9.33%，秸秆灰分的主要组成为大量不能直接利用的硅酸盐（含量为25.85%）、钙盐（含量为23.34%）以及钾的化合物（含量为17.47%）。

Shim current calculation When shim coils are excited by appropriate current, they can generate correcting magnetic field to compensate the imaging magnetic field unhomogeneity. Based on the indirect calculation method, we proposed a novel iterative optimization algorithm to calculate shim current. Because there is a direct proportion relationship between FID signal and magnetic field homogeneity, we use the intensity of FID signal as feedback information to the calculation. Shim current can be worked out in less than 3 minutes. This satisfied the requirement that active shimming should be performed in real time.

5匀场电流计算对匀场线圈施加适当的电流后才能产生校正磁场消除成像磁场的非均匀分量，本文在匀场电流间接计算方法的基础上，利用磁共振成像原理中磁场均匀性与系统FID信号强度成正比的关系提出了一种电流迭代优化算法，将系统FID信号强度的变化作为反馈信息，能够快速计算出匀场电流对成像磁场进行补偿校正，平均耗时不到三分钟，满足磁共振成像系统对有源匀场的实时性要求。

Shim current calculationWhen shim coils are excited by appropriate current, they can generate correcting magnetic field to compensate the imaging magnetic field unhomogeneity. Based on the indirect calculation method, we proposed a novel iterative optimization algorithm to calculate shim current. Because there is a direct proportion relationship between FID signal and magnetic field homogeneity, we use the intensity of FID signal as feedback information to the calculation. Shim current can be worked out in less than 3 minutes. This satisfied the requirement that active shimming should be performed in real time.

5匀场电流计算对匀场线圈施加适当的电流后才能产生校正磁场消除成像磁场的非均匀分量，本文在匀场电流间接计算方法的基础上，利用磁共振成像原理中磁场均匀性与系统FID信号强度成正比的关系提出了一种电流迭代优化算法，将系统FID信号强度的变化作为反馈信息，能够快速计算出匀场电流对成像磁场进行补偿校正，平均耗时不到三分钟，满足磁共振成像系统对有源匀场的实时性要求。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷