基本参数

On the basis of momentum conservation this paper focuses on the study of flow mechanism of the header and its flow static pressure distribution.

本文在动量守恒的基础上，研究汇流集箱的流动机理和集箱流体静压分析，锅炉汇流集箱流动的基本规律和设计参数。

When the production function was general, using theory of control and theory of stability, this paper discussed the production effect of government expenditure and fiscal policy, and got the expression of economic growth rate and structure stability of the economic variables when the production function was constant return to scale or increasing return to scale or decreasing return to scale, and pointed out how the interrelated parameters affected economic growth rate.

摘 要：在生产函数为一般形式时，利用控制论及定性理论的基本方法，讨论政府支出的生产效应和此时的财政政策。得出了当生产函数为规模收益不变、递增和递减时，经济增长率的大小及此时相关经济变量的定性结构，并指出了各种情况下相关参数如何对经济增长率产生影响。

As a genetic algorithm handles the constrained optimization problem, the key factor is how to treat with constraints.

与其他的方法相比，CIFGA基本保持了遗传算法控制参数的主导和控制作用以及在优化时的原有性能。

In accordance with two independent rectangular coordinate systems, this paper discusses the complete coordinate formula of the middle spiral curve, the two groups' basic relation which is different to the general one and the significant intentions for averting chain breaking, which comes from the line parameter selected to compute the right coordinate of the curve points.

从二个独立的直角坐标系出发，分析中插缓和曲线点位坐标计算的完整模式，说明中插缓和曲线有别于一般缓和曲线的两种基本关系，指出有效选用连接参数m值在准确计算中插缓和曲线完整点位坐标避免曲线断链的重要作用，结合实例阐述任意测站坐标变换技术计算中插缓和曲线点位坐标的公式和应用效果

Firstly, Some of the basic concepts of chaotic vibration are introduced, the qualitative and quantitative methods of chaotic vibration identification are detailed, the selection of associated parameters is studied, the algorithms for calculating the maximum Lyapunov exponent, correlation dimension and periodicity ratio are provided. On the basis of analysis and comparison of different methods, the methods used in the paper are selected.

本文首先介绍了混沌振动的基本概念；评述了混沌振动识别的定性和定量方法；对有关参数的选择进行了研究；给出了计算最大Lyapunov指数、相关维数和周期比的算法；在对不同方法对比分析的基础上，选出了本文拟采用的识别方法。

For example, to counter the disadvantage of apprising the dynamic characteristics of valve train with the maximum negative acceleration which is not enough be observed directly and not enough correct, a method of observing directly the valve trains bounce has been also put forward in this paper.

也就是在理论研究手段基本完备的情况下，利用模型直接观察机构的飞脱现象。并且以6110柴油机配气机构为例，考察了机构中最容易反映飞脱特性的推杆力随结构参数、凸轮型线和凸轮转速的变化规律，为研究配气机构飞脱特性提供了直观有效的方法。

Based on the dynamics fundamental equation, the rigid ships rolling coupled oscillation model was established, then the definite condition of the coupled oscillation equation under the regular transverse wave and first-order ordinary differential equations were presented. The ship vibration rule under the regular transverse wave was analyzed by examples, simultaneously the influence of damping coefficient on the vibration type was discussed.

基于动力学基本方程，首先建立了刚性船舶横摇的耦合振动方程，然后给出了在规则横浪激励下的耦合振动方程的定解条件和一阶常微分方程组，最后通过算例计算了在规则横浪作用下船舶的振动规律，同时研究了阻尼系数等参数对其振动规律的影响情况。

The design methodology and structure of hydraulic booster test stand are presented on the basis of analysis of the operation principle and parameters of the hydraulic booster used in the steering system of DFH1002/1202 crawler tractor.

文摘：在对东方红1002/1202履带拖拉机转向用液压助力器的工作原理和技术参数分析的基础上，阐述了该液压助力器试验台的设计方法和基本构成。

The optimization of the controller parameters with the CRS algorithm based on the reduced-order modeling is presented.

根据降阶的系统模型利用基本CRS算法对控制器各个参数进行优化。

Firstly, an equivalent circuit for a common FCG is discussed and influences of FCG's design parameters on its current and energy amplification are obtained. Mechanism of various Ohmic and non-Ohmic flux losses is reviewed.

首先从FCG的基本原理和结构出发，通过等效电路模型，得到了FCG工作过程中各种参数对其电流和能量放大影响的一般规律。

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。