计算公式

The equivalent circuit of the motor with this circuit has been analyzed in detail, and the nonlinear mapping between the equivalent resistance and the duty cycle is deduced.

鉴于有些应用场合需要有轻载低速的工作点，本文在转子斩波调阻的基础上，增加了定子降压调速，推导出了定子电压的计算公式。

Based on the equivalent transformation from fuzzy possibility distribution to random probability density distribution, the fuzzy random failure probability calculation can be formulated easily, and a First Order and Second Moment method for fuzzy - random analysis is established.

提出了模糊随机可靠性分析的近似解析和数字模拟综合方法，基于模糊变量的等价随机化变换，可以方便地得到模糊随机失效概率的计算公式，并建立了模糊随机可靠性分析的一次二阶矩法。

A method to preset the error band of dual-mode control by lock rang of PLL is proposed, and the formula for the lock range is also given.

在双模控制中提出了用锁相环快捕带确定误差带的方法，并推导出适用于电机控制系统的快捕带计算公式。

The results show that there are no significant difference between the estimative values and the actual measurements.

检验结果表明，用2个修正计算公式估算的甜瓜体积和表面积值与实测结果之间无显着差异。

In the paper, theoretic transfer heat model of HHCHP is established. After comparing experimental value and estimative value, we deduce that theoretic transfer heat model accords with actual condition, so we can estimate the heat performance of HHCHP by theoretic calculation formula.

同时建立了蜂窝热管平板式太阳能热水器的理论传热模型，通过对实验值和理论值的比较，得出进行简化后的理论模型在一般情况下与实际的情况是符合的，因此可以用理论计算公式对蜂窝热管平板式太阳能热水器的热性能进行估算。

In order to speed up the k-PNN query processing,efficient spatial and probabilistic pruning approaches are used to reduce the search space,thus the costly numerical evaluation of complex integrals can be avoided as much aspossible.

因此，必须尽量缩小查询所需搜索的空间范围，从而在不影响返回正确结果集的情况下，进一步减少所要考虑的非确定对象，在很大程度上避免利用原始计算公式来返回结果集。

All the work done is as follows:Firstly, given the impact of the soil gravidity stress on the scale of the vertical drain disturbance, Vesic's column cavity expansion theorem is mended. Then the radius of the plastic zone, the ultimate crowding stress and the soil displacement in the intersection of plastic and elastic areas are deduced when Mohr-Coulomb surrender criterion is adopted. The result of which caters better to the real situation.

本文针对竖井地基的施工扰动效应及固结可靠性做了如下一些工作：首先，考虑土体自重应力对竖井扰动范围的影响，对Vesic圆柱形孔扩张弹塑性理论解进行了修正，采用Mohr-Coulomb屈服准则，得到了弹塑性交界处土体位移、塑性区半径以及最终挤土应力等理论计算公式，修正以后的结果能更好地符合竖井施工的实际情况。

Given the template stent study the status quo, this study erection parameters and structural measures on the high Falsework fastening limit the impact of capacity, and provide a reasonable formula for calculating the limits of capacity.

鉴于模板支架的研究现状，本文主要研究搭设参数和构造措施对扣件式超高模板支架极限承载力的影响，并提出合理的极限承载力计算公式。

By analyzing transmission pathway and mode of VLF radio wave ,calculation formula of field intensity is given.

分析甚低频电磁波传播路径与方式，给出场强的计算公式。

First, this paper uses finite element to analyze temperature field of mass concrete and derive corresponding calculative formula.

首先，应用有限元理论对大体积混凝土的温度场进行了分析，推导出了相应的计算公式。

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％。