优缺点

This paper presents several control methods for BLDC motor, and describes their fundamental principles ,advantages and disadvantages in brief. The method of speed-independent function,based on a new flux linkage function,is explained in detail. This method makes it possible to detect the rotor position over a wide speed range from near zero to high speed.

本文介绍了几种无位置传感器无刷直流电动机的转子位置检测方法，并对它们的基本原理，优缺点作了简单的说明，详细地阐述了基于一种新磁链函数之上的与速度无关的位置函数控制方法，利用这种方法从零转速到高转速的宽速度范围内能检测到转子位置。

The principles and the types of limited slip differentials are discussed. Compared with all kinds of limited slip differential, the preload spring friction disc limited slip differential which is used as the axle bridge differential in a certain SUV is selected at last.

在总结相关资料的基础上，对防滑差速器的原理和分类情况作了分析，通过分析和比较各种防滑差速器的优缺点，最终选择了一种预压弹簧摩擦片式防滑差速器作为某SUV车型的后桥差速器。

In this thesis, various fabrication methods of fiber gratings are described systematically.

本文系统论述了光纤光栅的各种制作方法并比较了各种制作方法的优缺点。

The necessary conditions of the grid of the lead-acid battery and the manufacture of the stretch grid were introduced.

介绍了铅酸蓄电池板栅应具备的条件及拉网式板栅的制造；并对切拉网法制造板栅的优缺点和制造过程中的常见故障及处理进行了论述。

After analyzed the advantages and disadvantages of large conical roll and large guide disk in piercing mill.

对大锥形辊与大导盘在斜轧穿孔机中应用的优缺点进行了对比，认为大锥形辊综合性能优于大导盘。

The characteristics of nitrogen extinguishing system, its advantages and disadvantages, and its applicability are analyzed and compared with other halon alternative systems.

笔者对氮气灭火系统的特性、优缺点及其适用范围进行了分析，将氮气与其他哈龙替代气体灭火系统进行了比较，探讨了引起矿井与建筑火灾扑救差异的原因。

The features and the performances of the longitudinal cutting head and the transverse cutting head of the heading machine are compared in view of the problems in use.

针对掘进机纵轴式截割头和横轴式截割头在使用中各自存在的问题，使用比较的方法对掘进机纵横两种截割头的特点和性能进行了分析比较，发现两种截割头在不同的工作情况中有各自的优缺点。

How to deal with latent heat is investigated Equivalent specific heat method is regarded as an efficient method among the general latent heat treatment s method such as temperature compensation method and enthalpy method.

本文介绍了凝固过程数值模拟中潜热处理的几种方法，简单比较了它们的优缺点。

It introduces the application of heat-conducting oil in resin preparation and the process optimization design.

简述了树脂制备中的各种加热方法及其优缺点，着重论述了导热油加热系统在树脂生产制备中的应用及设计中的工艺优化设计。

This article from the honeypot system, the status quo and the development process, the advantages and disadvantages of honeypots described, but also the concept of honeypots prospects are described.

本文从蜜罐系统的现状与发展历程来看，对蜜罐优缺点进行了阐述，同时也对蜜罐这一概念的前景进行了描述。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。