查询词典 variable-density system

According to the current theory,time is considered as the major variable while interest rate has been supposed as constant which,however is uncomplying with the realistic society economy system.

在现行资金时间价值理论中，时间被视为主要变量，而利息率则被假设为常数，这种处理方式与现实社会经济系统是不符合的。

A state variable feedback based system control approach, which indirectly controls load voltage by means of controlling the supply current, is proposed, thus the problem that the undamped DC transient component of supply current, which is caused by the linking inductance between power supply and power loads under PI control mode, is solved.

分析了仅由1套逆变器构成的并联型综合电能质量调节器的结构特点和控制目标，提出了一种基于状态变量反馈的系统控制方法，通过控制电源电流来间接控制负载电压，很好地解决了常规比例–积分控制时电源和负载间的连接电感所导致的供电电流直流暂态分量不衰减的问题。

It is not suitable to analyze and study the factors of nonlinear, time variable and undefined of the system.

以所研制的电液比例变量轴向柱塞泵调节系统为研究对象，对所研究对象的神经网络控制问题，进行了广泛深入的研究和探讨，取得了一些有价值的成果。

The acceleration is indispensable as a state-variable for precise analysis of the dynamic response of a drive system. This is because it represents the direct, undelayed response of a mass being moved in reaction to all the forces acting on it.

加速度是必不可少的一对驱动器的系统，这是因为它代表着直接的，毫不拖延地的群众正在反应，反应的所有部队行事提出精确的分析动态响应状态变量。

Variable speed constant frequency ; wind power generation system ; unit power factor

变速恒频；风力发电系统；单位功率因数

The shift of organization roles in the process of system change is the paramount external variable of determinants affecting stock unseasoned issuance efficiency.

论文认为，制度变迁主体的角色转换是决定新股发行制度效率内生变量最主要的外生变量。

To improve the dynamic response capability of the system, a variable switch gain SMC is designed in this paper. It has faster response speed and chattering-reduction ability.

为了进一步改善系统的动态响应能力，本文设计了一种变切换增益滑模控制器，该控制器不仅具有快的响应速度，而且能有效削弱抖振。

Aim To reduce the error of the valve controlled system with energy saving hydraulic pump, which is caused by variable gain characteristic.

目的减少由于节能液压源下的阀控系统变增益带来的跟踪误差。

Energy saving hydraulic pump ; valve controlled system ; tracking control ; variable gain ; feedforward compensation

节能液压源；阀控系统；跟踪控制；变增益；前馈补偿

According to the requirements of the transmission fault diagnosis system's real-time performance,an acquisition method that synchronizes the rotational speed signal and the vibration signal is proposed.It realizes uniform angular sampling when the shaft moves in variable motion.

根据汽车变速箱性能检测系统的实时性高的需要，提出了一种基于NI公司的DAQmx的多通道数据同步采集方法，实现了在变速运动下转速信号和振动信号的精确等角度同步采集。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。