参数方程

Other methods can only give approximate values. The presented method can be used in any roller chain drive where the two sides of the chain are straight.

非线性方程法可用于参数是任何值的链传动，可计算出链轮在任何位置时的链传动中心距，且可计算链传动中心距的最大值和最小值，是精确计算链传动中心距的方法之一。

Conservations of mass, momentum, and energy are used to determine liquid film thickness and temperature.

液膜厚度、速度与温度等参数通过求解液膜的质量守恒、动量守恒、能量守恒方程获得。

It was the first time that experimental studies of the flow characteristics and convective heat transfer in platelet regenerative cooling channels with high aspect ratio were conducted in China.

大高宽比再生冷却套在宽度上已属于微小通道，为考察其流动传热是否与常规尺度管道不同，本文理论分析采用经典N-S方程而未考虑微小尺度效应是否合理，研究流道高宽比等几何参数对其水力和对流换热特性的影响，分别搭建了挤压式水力实验台和泵压式对流换热实验台，设计了d〓=1.0~1.2mm，宽度为0.6~0.8mm，AR=3~15的5个不同高宽比矩形通道层板试验件，采用线切割加工槽道和扩散焊接盖板的制造工艺，得到了质量可靠的试验件，以水为工质，在国内首次对大高宽比层板再生冷却通道的流动和对流换热特性进行了实验研究。

The parameters of the UNIQUAC equation for completely miscible pairs (PO-PA, PO-DCP, and PA-DCP), were calculated from the isobaric t x data by the minimisation of the objective function F: using the maximum likelihood method.

参数的UNIQUAC方程为完全互溶双（保坝，蒲应课税品许可证，并坝应课税品许可证），分别计算出等压的TX数据所减少的目标函数f：利用最大似然法。

The system can be modeled as a parametrically excited equation with damping term and cubic terms of x and x, etc.

针对海洋工程中的潜水艇拖缆问题的参数激励方程，研究其稳定性和复杂动力学特性。

By employing the transformations of variables and functions, the exact bright soliton solution on a continuous-wave background is obtained in quadratures, and is discussed in detail. From the behavior of the exact solution in exponential control fiber system, the conclusion can be obtained that soliton in a proper fiber system can be compressed or broadened.

通过变量和函数变换得到方程的精确解为连续波背景下的亮孤子解，并对精确解在不同情况下的具体行为作了详细讨论，以指数分布控制系统为例说明：当选择适当的光纤控制参数时，孤子可以被压缩/展宽。

In case of multiple canopies the throughfall is separated in a direct fraction, fth,d, and a bypassing fraction, fth,b, i.e.

截留贮存的融化量估算为：式中： iscale 为参数； M 为方程(4.32)-(4.34)计算积雪融化的函数；。

A Computer program of the hot starting and shutdown transients of a simple pressurized liquid bipropellant rocket engine is given,based upon the idea and basic equations provided by W.T.Webber etal.and mainly applying priem's combnstion model and feeding system distribution para- meter model.The hot starting and shutdown transients are calculated on 441B-Ⅲ digital computer and the elementary results arc obtained.

本文依据 W.T.Webber 等人提供的思路和基本方程，基本采用了 Priem 的燃烧模型和管路系统分布参数模型，为简单的挤压式双元液体推进剂火箭发动机热启动——关车瞬变工作过程编写了计算机程序，并在441B—Ⅲ型电子计算机上进行了计算，得出了初步的结果。

Clausius\|Clapeyron equation is modified in such a way that it can be used when the martensitic fraction is not a material constant, and a model describing the relationship between the recovery stress and temperature is developed based on the modified Clausius\|Clapeyron equation.

通过修正Clausius Clapeyron方程，使之在马氏体分数不断变化的条件下仍然适用，并在此基础上建立了TiNi形状记忆合金的回复力模型，模型中的参数均可通过实验确定。

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。