查询词典 three-wire

Wire electrode based on the trajectory of the different forms of control, WEDM can be divided into three types: one is shaped by the imitation controlled cutting in line in advance and work to create the same shape by mold, when processing the workpiece at the same time rough and on the mold clamping in the machine tool table, in the process of cutting wire electrode tightly against the mold on the edge of the track for the mobile, thus cutting out and die on the same shape and precision to the workpiece; another One is the electro-optical tracking control, to carry out the cutting line, before the basis of certain parts to enlarge the proportion of drawings depicts an electro-optical tracking map-processing machines will be placed in design stage of electro-optical tracking, tracking platform Photoelectric first line of graphics has always been to follow the track of the Mexican campaign, and then through the use of electrical, mechanical linkage to control the machine tool table, together with the workpiece so相似形wire electrode relative movement, thus cutting out the same shape and design to the workpiece; again a digital control, the use of advanced automatic control of digital technology-driven machine tool in accordance with the pre-processing parameters according to the workpiece geometry pre-processing procedures for the preparation of a good CNC auto-complete processing, the production does not require appearance on board the need to map to enlarge map of the previous two form of control has a higher machining accuracy and a broad range of applications, both at home and abroad more than 95% have adopted WEDM NC.

根据对电极丝运动轨迹的控制形式不同，电火花线切割机床又可分为三种：一种是靠模仿形控制，其在进行线切割加工前，预先制造出与工件形状相同的靠模，加工时把工件毛坯和靠模同时装夹在机床工作台上，在切割过程中电极丝紧紧地贴着靠模边缘作轨迹移动，从而切割出与靠模形状和精度相同的工件来；另一种是光电跟踪控制，其在进行线切割加工前，先根据零件图样按一定放大比例描绘出一张光电跟踪图，加工时将图样置于机床的光电跟踪台上，跟踪台上的光电头始终追随墨线图形的轨迹运动，再借助于电气、机械的联动，控制机床工作台连同工件相对电极丝做相似形的运动，从而切割出与图样形状相同的工件来；再一种是数字程序控制，采用先进的数字化自动控制技术，驱动机床按照加工前根据工件几何形状参数预先编制好的数控加工程序自动完成加工，不需要制作靠模样板也无需绘制放大图，比前面两种控制形式具有更高的加工精度和广阔的应用范围，目前国内外95%以上的电火花线切割机床都已采用数控化。切割属电加工范畴，是由前苏联人发明的，我国是第一个用于工业生产的国家，当时由复但大学和苏州长风机械厂合作生产的这是最早的机型叫复旦型，我们国内在此基础上发展了快走丝系统。欧美和日本发展了慢走系统LS

The characteristics and application of two-wire and three-wire system of public address distributing system are ana- lyzed and compared in detail through some projects, which gives a reference to the readers in design.

通过工程实例，对公共广播配线系统中二线制及三线制两种配线方式的特点及应用进行详细分析和比较，供同行设计时参考。

The above methods can be applied to unbalanced three-wire circuits but can not be used in four-wire circuits.

上述方法还可用于三线制不对称电路，但不能用于四线制电路。

In this paper, a new method of three-wire measurement is proposed, which can suppress lead wire resistance effects.

推荐一种消除引线电阻影响的三线制测量新方法。

This paper analyses the reason that neutral voltage is not zero when linear three-phase system load connects to three-phase three-wire system source in Y connection.

分析了线性三相负载Y联接在三相三线制电源时，中点电位不为零的原因，并通过计算进行了验证，给出了解决的方法。

To deal with the three-position mode. that is, a heat treatment spaces, spaces in the two months to feed silk processing, column electrodes three major equipment including : heating system, Ladle low argon blowing system, feeding cropping system, two ladle car. three wire-feeding machines and confiscated a slag.

处理模式为三工位，即一个加热处理位，俩个喂丝处理位，主要设备包括：三位立柱电极加热系统、钢包氩气低吹系统、上料下料系统、两台钢包车、三台喂丝机及一台扒渣机。

The one-cycle control equation and control circuit in three-phase bridge is similar to the three-phase three-wire system,the control equation and control circuit in N-phase half-bridge is mainly set up through analysis to the circuit.

有源电力滤波器是一种可动态地补偿谐波和无功电流的电力电子装置，四桥臂三相四线制APF可用于三相四线系统的谐波和无功电流的补偿。

All three models employ linearization, three-wire compensation, as well as provide complete three-way signal isolation.

这三种型号采用线性化，三线补偿，以及提供完整的三路信号隔离。

These voltages may be across just three wires, to form a three-wire, three-phase circuit.

这些电压，可在短短3线，形成三线，三相电路。

The topology of the three-phase three-wire voltage-type active power filter is analyzed. Based on the analysis, a novel control strategy is developed. Its objective is to minimize the composite error of the three-phase source current whose correlation control can be realized at the same time.

在分析三相三线电压型有源滤波器拓扑结构的基础上，提出了三相电流综合误差最小的开关控制策略，实现了三相电流的关联控制。

Dixie itself is a nickname for the American South.

Dixie 本身是美国南部的别称。

I think John Terry epitomises that and a big reaction is what we will be looking for.

而我认为特里就是这样一个典型，他正是我们期望看到的那个领秀。