查询词典 sampling fraction

Establishment of non-contact nanoscale measurement of local electrical properties (local charge and local electric field).The local electron concentration of N atom in Al_xGa_(1-x)N with different Al mole fraction were calculated and the concentration was found to increase with the increase of Al fraction.

利用第一性原理方法分别计算了不同Al组分的Al_xGa_(1-x)表面的N原子周围局域电子密度和相应的态密度，模拟不同电子密度N KVV论俄歇价电子谱主峰强度N_与次峰的N_的比值，发现了比值随电子密度的增加而线性增加的现象。

The pH increase resulted in formation of a higher fraction of granules with a smaller diameter and a si- multaneous decrease in the fraction of the larger gran- ules Fig.

pH值增加导致形成一个更高部分颗粒的直径更小的硅同步下降，部分规模较大的颗粒 ules （图4）。

Softs for the adsorption experiment were sieved into the sand-sized fraction and sfttand clay-sized fraction.

其中吸附实验又分成砂粒土壤和粘粒土壤2个粒级分别实验。

Moreover, the vanadium of oxidisable fraction in rhizosphere soils had best correlation with that in stem leaf and to root the acid soluble fraction was the best.

根际土中可氧化态钒与茎叶相关性最好，酸可溶态与根系相关性最好。

Among those lipids, crude soy-bean phosphatides are most powerful. Crude egg yolk phosphatides and its alcoholic insoluble fraction and sodium or ammonium oleates are also effective; whereas the alcohol soluble fraction of egg yolk phosphatidesi.e.

二在上述情况中，有效的脂類為大豆磷脂、粗製雞卵璘脂及其不溶於酒精的部分、油脂酸鈉和油脂酸銨等；溶於酒精的雞卵磷脂和油脂酸鉀，並無作用。

The efficiency of mass transfer in 60% fraction of hole is higher than in 40% fraction of hole. When gas/liquid ratio is lower 10, the efficiency of mass transfer in new sieve baffle tray is higher than in traditional tray.A three-dimensional quasi-single phase computational fluid dynamics program with the RNG- turbulence model is presented for evaluating the performance of the new sieve baffle tray. The special feature of this model is taking into account the influence of heat transfer during the mass transfer and the influence of mass transfer in computing the flow field.

建立了以RNG模型为基础的三维拟单相流模型，该模型与其它研究者所建立的模型的最大进步是，前人在塔板流场的计算中没有考虑传质的影响，并且在传质过程中没有也没有考虑传热对传质产生的影响，实际上在传质过程中，抛开传热来计算和研究传质是不准确的，因为在传质过程中伴随着传热，并且传热和传质是互相影响、互相制约的，本文所建立的传热与传质模型，把传热和传质进行了有效的藕合。

And they end up predominantly in the fine particle fraction in the fly ash duringcombustion.When biomass sample is pretreated by using chemical fractionation method,the content of volatile alkali in fuels decreases clearly and large amount of available C1 andS is also leached.So,during combustion the vaporization amount of alkali reduces and theformation of fine particle fraction in the fly ash is limited.

而当样品在经水洗分离和酸洗分离的化学处理后，燃料中易气化部分的碱金属元素含量大幅减少，大量水溶态或酸溶态的S，Cl等非金属&催化性&元素同时也被分离脱除，从而导致燃料样品燃烧时的碱金属气化量下降，且在成灰过程中向细微颗粒转化的途径也受到较大的抑制。

In this paper we proposed a hypothesis of difference fiber volume fraction and presented expressions respectively. The fiber volume fraction of unit cell is not equal to that of each lamina, which need calculate eachly. The paper also advanced conception of weighted average of three cell's stiffness.

本文提出了差别纤维体积分数的假设，各个纤维束的纤维体积分数与单胞的纤维体积分数并不相等，需要分别进行计算，并分别给出了各纤维束的纤维体积分数计算式；还提出了三单胞弹性模量按比例叠加的思想，并给出了比例计算式，计算出了结果。

Unit fraction concepts: The description problems of language of halves are easier than the problem of symbol of 1/2. Students have the habit to deal with unit of things of all contents. When they face the problem of remaining to divide again, they would by oneself increase or reduce the thing of contents. And students were inclined toward each fraction appearing in the same contexts of assumption of ego to have the same deal of unit. When facing comparing problems could be influenced by intuition rules of Same A — Same B and solving problems incorrectly.

单位量概念的表现：一半语言叙述的问题的表现优於具二分之一符号的问题，较习惯用全部内容物当单位量，面对余量再分问题时会自行增减内容物改变单位量，会倾向於自我假设在同一情境中出现的各个分数具有相同的单位量，面对比较问题时受直观规律Same A─Same B的影响而错误解题。

Students' responses to fraction unit's concepts. About 2.1%~26.1% high graders, the major mistakes were changing and neglecting the object of units. About 19.5%~42.7% high graders were toward to think that each fraction appearing in the same contexts of assumption of ego to have the same deal of unit. When the number of contexts was larger than unit, about 36.2%~40.5 high graders can't throw the un- necessary messages away.

在分数单位量概念表现上，约有2.1﹪~26.1﹪的高年级学童主要错误成因在於改变及忽略单位量的大小；约有19.5﹪~42.7﹪的高年级学童，倾向於自我假设在同一情境中出现的各个分数具有相同的单位量；约有36.2﹪~40.5﹪的高年级学童，内容物个数多於单位量内容物个数的情况中，无法排除多余资讯的干扰。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。