分数的

Formulae for the structural volume fraction of phases and the quantitative relationship between the phase amount s obtained respectively by calculations in atomic fraction and in mass fraction of elements are derived for multi-phase alloys.

导出了多相合金组成相结构体积分数以及用成分的原子分数与质量分数求得的相含量之间的关系。

Supposing that the mark of the test equals the sum of the true mark and the conjectural one in a multiple choice test .

在多项选择题测验的卷面分数等于真实分数和猜测分数之和的假设模型下，给出了计量猜测因素影响程度的一种统计方法。

The design method of fractional Controller for angle stability loop and mass center control loop of GREP was studied.The fractional PI~λD~μController and integral PID Controller were designed respectively for some type GREP.The simulation results show that the fractional PI~λD~μController designed by this method has its own features compared with PID Controller.

研究了滑翔增程炮弹角稳定回路和高度控制回路的分数阶控制器设计方法，并对某滑翔增程炮弹算例分别进行了分数阶控制器和整数阶PID控制器设计，仿真结果表明该设计方法设计的分数阶控制器较PID控制器有其自身的特点。

The best advantage of the method is that it can solve the complex fractional order calculus equation which can hardly be answered by the general calculus knowledge.

该方法最大的优点是能够解决由一般的分数阶微积分知识所不能或是很难求解的复杂分数阶微积分问题，对于分数阶的钱性微积分方程也完全适用。

In Chapter 3, considering fractional relaxation equation, we make use of directlythe Grunwald-Letnikov definition to discrete fractional derivative, obtain a numericalmethod of fractional relaxation equation,and give the proof of consistency ,conver-gency and stability.

第三章对于一个推广到分数阶的松驰方程，直接利用Gru¨nwald-Letnikov分数阶导数定义进行离散，得到分数阶松驰方程一个数值方法，并给出了相容性，收敛性和稳定性的证明。

One position control system is introduced as the objective controlled by FOC. Based on Mittag-Leffler function, the fractional order control system with full memory length is adopted as evaluation criterion, and an approximation performance function of discretization methods is proposed. Analyzing the time domain error and approximation performance, the investigation to various discretization methods is carried out comparatively in detail.

引入一个位置控制系统作为分数阶控制对象，将Mittag-Leffler函数的全记忆长度分数阶控制系统作为评估基准，提出了一种离散算法的近似性能函数，通过时域误差分析以及近似性能分析，对比研究了分数阶微积分算子的数字实现方法。

The children's mean score in rhythm test is 62.73; the standard deviation is 7.68; the frequency distribution showed the right skewness and the leptokurtic distribution, indicated that the number of children who scored higher than mean score were more than that who scored lower.

一、全体儿童在节奏测验的平均分数为62.73，标准差为7.68，分数呈现负偏态及高狭峰的分配，即分数以高於平均数的人较多。

Amy's grade was the 90th percentile of the 80 grades for her class.

在 Amy 班那 80 个分数中，90%比她的分数低。所以有 72 个分数比她的低。

Methods: Foty healthy New Zealand white rabbits were randomly divided into four groops. Control groop was fed with normal diet for 10 weeks, model groop was fed with 1.5% cholesterol diet plus normal diet; APS groop was fed with 1.5% cholesterol plus 12.0mg/kg APS plus normal diet; Captopril groop was fed with 1.5% cholesterol plus 15.0mg/kg Captopril plus normal diet. After ten weeks' experiment, the concentration of each group's Triglyceride, Total Cholesterol, High Density Lipoprotein Cholesterol, C Reactive Protein, Nitric Oxide, Maleic Dialdehyde and Endothelin-1 were measured, so was the activity of superoxide dismutase.

将40只雄性新西兰兔随机分为4组，每组10只，对照组餵普通饲料；模型组：普通饲料加质量分数为1.5%的胆固醇餵养；黄芪多糖组：普通饲料加质量分数为1.5%的胆固醇餵养，同时腹腔注射APS(12.0mg/kg)；卡托普利组：普通饲料加质量分数为1.5%的胆固醇餵养，同时灌喂卡托普利(15.0mg/kg)；10周后，测定各组空腹血清或血浆三脂酰甘油、总胆固醇、高密度脂蛋白胆固醇、一氧化氮、内皮素-1(ET-1)、丙二醛、C反应蛋白含量以及超氧化物歧化酶活性，并计算主动脉内膜粥样斑块面积。

Based on the actual conditions of the 5342 fully mechanized caving face of Wulan Coal Mine, the 3-D distribution of gas in the face is tested by measuring points arrangement in the stereo grid. The isograms of gas distribution of the face are drawn. Gas concentration nadir distribution curve along the working face incline direction is drawn by method of seeking function minimum points. The method of calculating gas emission components ratio of the face by means of the curve is brought forward.

针对乌兰煤矿5342综放工作面的实际条件，采用立体网格状的测点布置，对该工作面瓦斯体积分数三维分布进行了测定，绘出了瓦斯分布等值线图，采用求函数极值点的方法，得出了工作面沿倾向瓦斯体积分数最低点分布曲线，提出了基于瓦斯体积分数最低点分布函数的瓦斯涌出分量比例计算方法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。