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The results of study showed that, the proportion of cotton seed cake could account for 30% in the mixed feed of fish for Cyprinus carp and Ctenopharyngodon idellus, and could reach 50% for Tilapia nilotica.

试验表明，在鲤鱼、草鱼的饲料中，棉籽饼可达30％、尼罗非鲫的可达50％，前者若用0.5％的硫酸亚铁溶液去毒处理，其养鱼效果优于未去毒的，后者可直接饲喂。

The kernel is adding a discontinuous function for the standard approximation to account for the crack. A feasible technique is adopted for dealing with multiple cracks and intersecting cracks.

本文研究扩展有限元方法，通过改进标准有限元的单元逼近函数，使之能够表达单元内的几何不连续，从而实现切割和断裂的模拟。

Climatic gradients were based on data sets from 841 meteorological stations throughout China. Definitions for floristic distributional patterns were based upon the work of Prof. Z. Y. Wu. Most of these floristic distributional patterns were strongly correlated with the geographic gradients in climate, except for cosmopolitan, cultivated and invasive genera. Tropical genera form a large fraction of the total genera (ranging from 0.84% to 94.38% in the regional floras) with the highest proportion in southern Yunnan and Hainan Island. Tropical genera occur predominantly in southern China of 0° N latitude and decreased with increasing latitude, as would be expected. Interestingly, the disjunct Tropical Asia and Tropical America distribution were not restricted to southern latitudes. Temperate genera account for 5.1% to 98.83% of the total genera in regional floras with the highest proportion in the province of Xinjiang. Most of these genera followed geographic gradients in climate as expected (temperate genera conspicuously dominate the landscape at higher latitudes), except the East Asian and North American disjunct distribution, Eastern Asian distribution and Chinese endemic distribution. Generally, most plant genera demonstrated some correlation with climatic and geographic gradients. The most important gradients were those of annual air temperature and precipitation. A small fraction did not demonstrate significantly particular pattern:"Cosmopolitan","East Asian and North American disjunct","Eastern Asian" and "Chinese endemic" distributions. The North Temperate distribution had the highest correlation with mean annual air temperature and precipitation.

结果如下：(1)除世界分布、栽培和入侵成分外，大部分中国种子植物属的地理成分的分布与地理相关密切；(2)热带分布属（泛热带分布、热带亚洲至热带美洲间断分布、旧世界热带分布、热带亚洲至热带大洋洲分布、热带亚洲至热带非洲分布及热带亚洲分布合计）占各地方植物区系的0.84%到94.38%，其最低值出现在中国西北部的新疆和青海地区，最高值出现在中国云南南部和海南；(3)热带分布属在＜北纬30°的地区占优势，除热带亚洲至热带美洲间断分布外，其它热带成分随纬度增加迅速减少；(4)温带分布属（北温带分布、东亚和北美间断分布、旧世界温带分布、温带亚洲分布、地中海区、西亚到中亚分布、中亚分布和东亚分布合计）占各地方植物区系的5.1%至98.83%，其最高值出现在中国西北部的新疆地区，最低值出现在中国云南南部和海南；(5)除东亚和北美间断分布、东亚分布和中国特有分布外，其它温带成分随纬度增加迅速增加；(6)在温带成分中，东亚和北美间断分布及东亚分布属主要出现在中国亚热带到暖温带地区，北温带分布、旧世界温带分布和温带亚洲分布属在中国北部占优势，而地中海区、西亚到中亚分布和中亚分布属则在中国西北部占优势；(7)除世界分布、东亚和北美间断分布、东亚分布和中国特有分布外，所有其他成分都显示了与气候因素密切相关，其中，北温带分布属与年均温和年降雨量最为密切相关。

We believe that it is extremely difficult for export volume to account for 10% of domestic gross yield, and almost impossible to reach 20%, let alone the estimation from foreign experts that Chinese apple yield may reach 34 million t in 2010. According to the calculation, 10% yield accounts for 55% of world export.

我们认为，出口量达到国内总产量的10%是极其困难的，达到总产量20%几乎不可能发生，更何况国外专家估计，2010年中国苹果产量可能达到3400万 t[1]，以此计算，10%的产量已占世界出口量的55%。

Nonetheless, the government has set ambitious targets for renewable energy, which is supposed to account for 15 percent of the country's fuel mix by 2020, and for tree planting, to boost forest cover to 20 percent of China's land mass by the end of next year.

尽管如此，中国政府确定了到2020年使可再生能源占国家能源的15%的宏伟目标。还有植树，到明年年底森林覆盖率提高到中国陆地面积的20%。核能，中国计划在明年年底前将核能翻两番，正在施工中的18个核电站可能占了世界在建总量的一半。

Based on field data analysis, a normalized ratio η is suggested in this paper to account for the different geological conditions; and a modified Mair equation is established which is not only suitable for the cases surface settlement trough with different width parameters, but also can be used for sands.

在Mair公式的基础上，着重讨论了沉降槽宽度参数随地层深度的变化趋势，并提出了修正计算公式，不仅可以考虑地表沉降槽宽度参数与0.5相差较大的情况，还适用于砂类土地层，因此比Mair公式具有更广泛的适用性。

Taking into account the large number of information contained in authoritative journal about the History of Science, while avoiding the unreliability of results concluded by a single journal, through analyzing the contents metrically from 1993 to 2005 in three most authoritative journals on History of Science (ISIS, History of Science , British Journal for the History of Science), the paper displayed detailedly the microcosmic orbits of History of Science, revealed the hot points and hold the trends from the macrocosm and provided evidence and theoretical support for Historiography of Science. This will undoubtedly have an important academic value and theoretical significance.This article has three parts.

考虑到权威期刊所蕴涵的大量的科学史信息，同时避免单一期刊研究结论的不可靠性，本文选取国际上最权威的三份科学史综合期刊《爱西斯》、《科学史》、《英国科学史杂志》(British Journal for the History of Science)，对1993-2005年的内容进行计量分析，详细地展示这十多年来科学史研究的微观发展过程，并在三者计量结果进行相互比较印证的基础上，揭示科学史研究热点及发展脉络，从宏观上把握科学史研究的学术走向，对科学史研究重点的调整提供证明与借鉴，并为科学编史学的研究提供理论支持。

The results also suggested that a better capacity for osmoregulation in S. przewalskii might account for its greater capacity for freezing tolerance than S. chinensis .

祁连圆柏的相对含水量和自由水含量均低于圆柏，3种有机渗透调节物含量均高于圆柏，表明祁连圆柏在抗冷冻性诱导中具有更广泛的适应性策略。

The experiments for determining the reaction kinetics of Daqing atmospheric residue were performed in a continuous flow, expanded bed rector. Four-lumped reaction kinetic model was developed to account for various feed and product fractions of Daqing atmospheric residue (gases, gas oil, residue and coke). The amounts of olefins and alkyls in the gas products were further analyzed to determine reaction kinetics of gas product distributions. Hence, a combined five-lumped reaction kinetic model was obtained for catalytic pyrolysis of Daqing atmospheric residue. The kinetic constants both in four-lump model and five-lump model were evaluated. A simulator for catalytic pyrolysis process was developed by incorporating the five-lumped kinetic model into the hydrodynamic flow model.

其次利用改进的固定流化床装置考察大庆常压渣油催化裂解反应规律，筛选反应工艺参数；分析了催化裂解工艺存在的主要化学反应类型，提出了渣油一次反应和二次反应网络图；将反应原料油作为单独集总组分，而将产品中的轻质油、气体、焦炭分别作为集总，从而建立了四集总动力学模型；在此基础上，把气体产物中的目的产物低碳烯烃独立划分，得到五集总动力学模型；采用最小二乘法分析实验数据，分别得到四集总动力学模型和五集总动力学模型中各集总间相互反应转化的反应速率常数。

For that nature is insufficient to account for the existence of either nature, since every nature is what it is by reason of its ultimate formal constituent. But it is precisely what—to the exclusion of all else—accounts for a thing's actual existence, that is the reason for its being necessary.

第二个矛盾是两者都把公共原因设定为其存在必然性的初始因，这不可能，因为这一原因对两者的存在来说都是不充分的，每一本性都是其最终形式要素决定的所是，排除所有其他，这就是某物真实存在的确切说明。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。