电弧

This paper is concerned with plasma properties of a vacuum arc discharge with the titanium cathode. Electric probe characteristics are measured as a function of substrate bias voltage near substrate region.

本文运用Lansmuir静电探针技术，对真空电弧镀膜过程中，基片鞘层附近区域的电子能量电子密度值及其受基片偏压影响而改变的关系进行了实验测量。

The cathode phenomena in hollow cathode arc discharge in vacuum wereinvestigated systematically. The influence of welding parameters on active zone ofhollow cathode , arc appearance and voltage-ampere curve was investigated.

小电流的发散态电弧能量密度低，柔性大，可作为局部加热热源进行真空钎焊；大电流的可作为理想的熔焊热源，进行各种难熔易氧化金属在真空条件下的高质量焊接。

The problems of applying characteristic harmonic method to identify welding torch attitude based on rotational arc sensor were researched.

以旋转电弧作为传感器，研究了利用特征谐波法进行焊枪空间姿态检测的若干问题。

This experimentation is to select the SUS 304 stainless steel weldment using plasma arc welding process.

本实验选用SUS 304不？袗？为试验材料，采电浆电弧焊为焊接方式。

Mo0.85Nb0.15Si2 single crystal was then prepared by using optical floating zone melting method at a rate of 4mm/h.

以电弧熔炼得到的合金为母合金，通过光学悬浮区域熔炼法，选择适当的生长速度4 mm/h制备了(Mo0.85Nb0.15)Si2单晶，单晶结构为C40结构。

Some welding parameters attribute values,such as current,voltage etc,were acquisited in GMAW process.

检测了熔化极气体保护焊中焊接电流和电弧电压大小等参数特征，利用数字信号分析与处理中的时域自相关特性原理，分析GMAW熔滴过渡过程的稳定性与参数关系，判断焊接电流和电压是否具有周期性。

The results show that the quality of AlN thin films are improved with the increase of N2 flow rate.

摘 要：介绍了一种应用电子浴辅助阴极电弧源法合成AlN薄膜的新方法，研究了N2流量、阴极偏压、工作气压等工艺参数对合成AlN薄膜质量的影响规律。

The main principle of the DCcontactor:The electromagnetism coil switches on electricity thetitle iron to match with the iron heart on,the suction of theelectromagnetism system overcomes the counterforce of the springarouses the action of the contact, the main electric circuitconnected;The electromagnetism coil cuts the power the counterforceof the spring arouses the title iron from move to open, the headcontact breaks to open the output electricity arc give or get anelectric shock in drive to arc-extinct-chamber and made longer,thestrong cooling dissociates and put out,the main electric circuitcuts off.

接触器的主要原理：电磁线圈通电，衔铁和铁心吸合，电磁系统的吸力克服弹簧的反作用力带动动触头与静触头接触，主电路接通；电磁线圈断电，弹簧的反作用力带动衔铁和动触头弹开，触头断开产生的电弧在灭弧室中受到磁吹灭弧和电动力驱动被拉长，并强烈冷却去游离而熄灭，主电路切断。

A new method for the monitoring system of arcing fault is therefore proposed.

基于Duffing振子信号检测技术提出一种新型的故障电弧监测方法。

Considerable research has been conducted in the area of arcing ground-fault current magnitudes on low voltage systems.

相当多的研究已进行了的电弧接地面积故障低电压系统电流程度。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。