查询词典 fractional number

Tooth Proportions.—There are 17 pitches: 2.5/5, 3/6, 4/8, 5/10, 6/12, 8/16, 10/20, 12/24, 16/32, 20/40, 24/48, 32/64, 40/80, 48/96, 64/128, 80/160, and 128/256. The numerator in this fractional designation is known as the diametral pitch and controls the pitch diameter; the denominator, which is always double the numerator, is known as the stub pitch and controls the tooth depth. For convenience in calculation, only the numerator is used in the formulas given and is designated as P. Diametral pitch, as in gears, means the number of teeth per inch of pitch diameter.

齿比——一共有17种齿比：2.5/5，3/6，4/8，5/10，6/12，8/16，10/20，12/24，16/32，20/40，24/48，32/64，40/80，48/96，64/128，80/160和128/256在这一系列的分数中的分子是径节，径节的大小决定了节圆的直径；而分数中的分母通常是分子的两倍，分母是残余径节，它的作用是控制齿槽的深度为了方便计算，在所有的公式中都使用分子作为计算参数，并且与齿轮的表示方式一样定义为径节P尺寸，也就是在节圆上，每英寸长度上的齿数

Fractional Factorial -- A factorial experiment where the number of runs is reduced for economy in the experimentation.

部分因子试验--在实验中出于经济性的考虑减少实验的次数。

Chapter 5 to text the numerical method put forward carries on the numerical experiment, special two fractional differential equation problem within biologies carries on the test, the number result enunciation method is valid.

第五章对文中所提出的数值方法进行了数值试验，特别就计算生物学中的两个分数阶微分方程问题进行测试，数值结果表明方法是有效的。

In mathematics, a fractional power of a number or quantity.

数学中指一个数或一个量的分数次幂。

By compared with standard Brownian motion, the fractional dimension number of path of practical liquid molecular motion is analyzed theoretically on the basis of fractal theory.

运用分子动力学模拟方法，模拟了84K恒温液氩系统中分子的运动过程，统计了不同空间观测尺度及时间观测尺度下分子运动轨迹的分维数。

Based on fractal theory, the density, the temperature, the pressure tensor, the local surface tension and fractional dimension number of liquid-vapor interface at equilibrium are obtained by the help of molecular dynamics simulation.

本文在分形理论基础上，采用分子动力学模拟方法研究了在平衡状态下的汽液界面参数，得了界面区内的密度、温度、压力张量、表面张力和分维数的分布。

"Countrywide broadcast over a radio network " the setting that the product rolls out is the society appears the fractional group of a large number of individuation, the consumptive life that causes the people and brand acknowledge produced tremendous change, drive media " small numerous " change.

"全国联播"产品推出的背景是社会出现大量个性化的碎片群体，导致民众的消费生活以及品牌认知等发生了巨大变化，驱动媒体"小众"化。

Finally we need an sequencing schema that both allow random insertion at arbitrary positions and rarely need to change saved data. Then this class come into idea inspired by fractional arithmetic of the positional number system.

因为采集信息不足，所以只要是人不同或者被看待的事情不同，总结出来的规律就不会完全一样，在地域和时间上再存在差距的话，这种不同就会更加剧烈，甚至能够导致完全格格不入的价值观念体系。

The thickness and fractional dimension number of the liquid-vapor interface are simulated by selecting Argon as working substance and using Lennard-Jones potential in the rectangle simulation box under the condition of 2048 simulated particles in the NVT canonical.

本文应用分子动力学模拟方法进行了汽液界面厚度和分维数的模拟研究。

From probability consideration, the curing theory of A〓+A〓-type and A〓+ B〓-type polymerization involving initiation stepis proposed. The sol-gel distribution equations which can describethe behaviour of the conversions in the curing process are givenand the gelation condition, the number fractional distribution andits invariant property are obtained.

针对含引发机制的〓型和〓型缩聚反应体系的固化问题，利用概率分析的方法进行了系统的理论研究，给出了这两类反应体系的溶胶凝胶分配方程，从而揭示了体系在固化过程中的变化规律，得到了这两类反应体系的凝胶化条件、数量分布函数及其不变性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。