查询词典 mathematical formula

Firstly, according to the analysis of the forming principle of the involutes profile and the tooth thickness of formula, a mathematical model of involutes profile was established.

首先，根据对渐开线齿廓形成原理和渐开线齿轮任意圆上的齿厚公式的分析，建立了插齿刀的渐开线圆柱齿轮齿廓的数学模型。

The mathematical relation formula is derived from the train running speed,distance and the output voltage frequency of tacho generator.

推导了列车运行速度、走行距离与测速发电机输出电压频率的数学关系式，给出了利用CMOS数字集成电路和频率合成原理实现上述关系的电路框图，并对其速度接口电路、轮径输入方法及频率合成电路、分频电路和BCD比例乘法器电路、显示电路、基准频率发生电路、电源电路等作了分析与说明。

Based on the prediction model for uncatalytic double base propellant burning rate the dissertation, carrys on the mathematical treatment to the hypothesis of polyemerization and disintegration, deduces the formula of catalytic double base propellant burning rate and pressure exponent; The results of experimental tests show that it can re-present quantitatively various stage of plateau combustion: super rate, plateau and mesa. The calculated results conform with the experimental results very well.

在非催化双基推进剂燃速预估理论的基础上，对聚合裂解的假设进行数学处理，导出催化双基推进剂的燃速公式和燃速压力指数公式；实验验证结果表明，模型中的公式可以定量地再现双基平台推进剂燃烧中的超速，平台和麦撒现象，而且计算值和实测值符合得较好。

Take the common platoon quadrat in the formula most typical enemy two-row as the example analysis plate two-dimensional platoon type whole optimization question, unifies Yu Liao the use, establishes reasonable mathematical model which the two-dimensional platoon type whole optimizes.

以常见排样方式中最典型的对头双排为例分析板材2维排样的整体优化问题，结合余料的利用，建立2维排样整体优化的合理数学模型。

Take the common platoon quadrat in the formula most typical enemy two-row as the example analysis plate two-dimensional platoon type whole optimization question, unifies Yu Liao the use, establishes reasonable mathematical model which the two-dimensional platoon type whole optimizes.

以常见排样方式中最典型的对头双排为例分析板材二维排样的整体优化问题，结合余料的利用，建立二维排样整体优化的合理数学模型。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。