原理

Based on detailed analysis for the principle of 8255 programmable parallel interface working...

在详细分析8255可编程并行接口芯片工作方式2原理的基础上，以采用8031CPU构成PC机智能接口卡为例，论述了采用两片8255实现PC机与智能接口卡间并行通信的方法，给出了具体接口电路，并详细分析了该接口电路的工作原理及特点。

This paper puts forward a novel DC link parallel resonant soft switching technology. It mainly analyses the topology, working principle of the soft switching inverter. Finally it validates its theory and feasibility through experiment.

该文提出一种新型的直流环节并联谐振软开关技术，重点分析了此种软开关逆变器的拓扑结构、工作原理和特点，并通过实验验证了其原理和可行性。

On the principle of the parallel four link rods machanism, using two group parallel and equal distance spring slices, by a series of mechanism links, the position changes of rods and measure head on two grooves were showed by measuring meter in order to measure the change amount of two groove distance on central spindle of spinning bearing .

本文运用了机械原理中平行四杆机构原理，采用两组平行等距弹簧片组，通过一系列结构连接，使杆、管臂测头在两沟道中的位置变化，由测量仪表显示出来，从而达到测量纺杯轴承心轴上两沟间距离的变化

In this thesis, the applications of the parametric variational principle and the parametric quadratic programming method in the structural dynamic elastic- plastic response analysis and the dynamic strain softening problem are studied.

本文针对参变量变分原理以及基于此原理的参数二次规划方法在求解结构弹塑性动力响应和动力弹塑性软化问题中的应用进行了研究。

of parsing is based on LL (1) in compiler principle. And this method is simpler than it.

分析的方法根据编译原理中 LL(1)的原理并作出简化。

Based on the working principle of the pendulous accelerometer,this article firstly analyzes how the change of temperature influences the scale factor,and then,we set forth the compensation theory and method of the temperature coefficient of the scale factor.

本文根据悬丝支撑的摆式加速度计工作原理，分析了温度变化对标度因数的影响，同时给出了标度因数温度系数的补偿原理和方法，并通过试验进行了验证。

Based on the previous works, the paper first introduced and summed up the princi ples and characteristics of information processing of ANNs. Then the paper placed em phasis on their algorithms and theory foundation of application for operator approxima tion and patern recognition to lay the theory base for the study of the data-driven joint inversion.

在前人研究的基础上，本文首先归纳和总结了人工神经网络的基本原理和信息处理特征，并着重讨论了BP神经网络的算法原理和它在估计映射算子和模式识别方面应用的理论依据，为本次数据驱动的联合反演研究奠定了理论基础。

This article introduces the principle of photocatalysis and methods for application on air purification.

本文透过光触媒原理的介绍，希望读者了解光触媒的基本作用原理，并介绍光触媒在空气净化之应用方式及应用的实例，期读者对光触媒在空气净化之应用上，能有正确的观念。

This paper introduces the fundamentals of the system of "Laser Digital Color Photofinishing", analyzes the principle of the output control system for it, and provides the solutions, expatiates on the specific design of each part of the whole system.

本论文介绍了激光数码冲印系统的基本原理，分析了激光数码冲印的输出控制系统原理，并提出了解决方案，详细介绍了方案中每一部分的具体设计和实现。

Much attention is paid to the mesh principle of variable ratio rack and sector, which includes the principle of variable ratio, the selection of gear type, the setting up of rolling pitch line, and the determination of tooth profile.

重点说明转向器中变速比扇形齿轮和齿条的啮合原理，包括变速原理，变速齿轮的选择，滚动节线的建立，齿形的确定等问题。

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。