查询词典 variable

The variable spraying control system took the S3C44B0X microprocessor of ARM7 series as its core control part and programmed with C language in the UCOS-Ⅱ environment. The system was able to fulfill the data acquisition and processing of the position and the speed about the sprayer, the pressure and the flow about nozzles, and recognize the plot and then adjust the electrical control valve to realize variable spraying.

该系统以ARM7系列的S3C44B0X微处理器为核心，在UCOS-Ⅱ操作系统环境下，使用C语言编程实现机具作业位置、行进速度、喷头入口压力以及喷头喷药量信息的采集与处理、网格识别和电动调节阀控制。

If the axial flow pump are used for diesel or gasoline engine power, and can change the size of variable-speed throttle; if the axial flow pump with the power machine is linked to the use of triangular belt or flat belt drives the overhead, you can change to variable speed drive pulley diameter, the replacement of driving wheel or the driven wheel can be, the purpose is to change the transmission ratio.

如果轴流泵是采用柴油机或汽油机作动力的，可改变油门大小来变速；如果轴流泵与动力机相联是采用三角皮带或平皮带间接传动装置的，则可以改变传动皮带轮直径来变速，更换主动轮或从动轮都可以，目的是改变传动速比。

Based on the research on the theory and technology of dual-PWM variable frequency AC motor control, a design of dual-PWM variable frequency AC motor control system which has factor control loop rectifier and slip frequency speed regulator is proposed.

本文在总结和研究当前双PWM变频调速基础理论和常见技术的基础上，设计并研究了一种基于DSP的整流侧功率因数闭环、逆变侧转差频率控制的双PWM异步电机变频调速系统。

The paper also study the variable control of uncertain system and the variable control of time lag system. At last adopt this discrete approach law in Series-wound Active Power Line Conditioner control.

同时对不确定性离散变结构系统和时间滞后不确定系统进行了分析；最后用离散变结构控制方法对串联型有源电网调节器进行控制。

The fuzzy variable structure controller with self-adjustable factor is used in the control of turbo-generator. The fuzzy variable structure valve controller is designed.

该控制器可以根据切换函数的大小，亦就是根据系统的实际状态来确定控制量的大小，引入切换函数的导数为输入也可以进一步改善控制效果。

The system implemented forest fire model selection automatically and intelligently. BP artificial neural network model of forest fire model selection was build by treating forest fire environment data as inputting variable and treating appropriate forest fire model as outputting variable. At the same time, we studied the methods of acquiring and calculating data of inputting and outputting. The system implemented machine of model selection automatically based on dynamic data driven technology. We selected 72 items experimental data from historical forest fire records in Beijing to experiment and confirm the validity of model selection. It turned out that the reliability of model selection is more than 80 percent.

3基于BP人工神经网络方法设计了林火模型适宜性选择技术框架结构，通过神经网络形成林火模型选择知识，实现了林火模型的自动化和智能化选择；以火场环境因子为输入变量，以适宜火场环境模拟的林火蔓延模型作为输出变量，构建了林火模型选择神经网络模型；研究了输入、输出因子数据的获取与计算方式，实现了动态数据驱动的林火模型自动选择机制；以本京市为例，选择了有详细火场情况记录的72场林火作为实验样本，其中60条记录作为学习样本集，12条记录作为验证样本，对神经网络进行了学习和验证，实验结果表明，模型选择精度可达到80%以上。

Nantong City of Spring giant hanger Limited, the company from 1985, I began specializing in the production of domestic and foreign variety of variable spring hanger, Constant Spring hanger, variable disc spring hanger, Constant disc spring hanger , Hydraulic dampers, dampers, shock absorber spring, the folder, connections, supports, pipe-hanger (including non-standard pieces of the design and manufacturing), the products are suitable for nuclear power plants, thermal power plants, boilers Industry, petrochemical enterprises.

南通市巨力弹簧吊架有限公司，我公司从1985年开始专业生产国内、国外各种规格的可变弹簧吊架、恒力弹簧吊架、可变碟簧吊架、恒力碟簧吊架、液压阻尼器、阻尼器、弹簧减振器、管夹、连接件、支座、管道支吊架（包括非标件的设计及制造），产品适用于核电厂、火力发电厂、锅炉行业、石油化工企业。

A variable capacitor; variable filters in front of the mercury xenon lights.

电容；水银氙灯前面可以调节的滤光器。

A variable capacitor; variable filters in front of the mercury xenon lights.

可变电容；水银氙灯前面可以调节的滤光器。

The prospectus gives information needed by investors to make informed decisions prior to investing in a specific mutual fund, variable annuity, or variable universal life insurance.

公开说明书向投资者提供必要的资讯，帮助他们在知悉有关情形之后作出决策，然后决定是否投资於特定的共同基金。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。