电弧

At present, the arc coating technology is more popular in many fields in China and is widely applied.

目前，电弧喷涂技术在国内已受到许多部门的重视，正得到越来越广泛的应用。

The temperature of the arc reaches about 10000℃.

约10000℃的电弧温度达到。

Tungsten –Copper alloy is the composite of Tungsten and Copper which own the excellent performances of Tungsten and Copper, such as heat-resistant, ablate-resistant, high-intensity,high-density, excellent thermal and electrical conductivity. It is easy to be machined. It is used widely in such industries as engine, electric power, electron, metallurgy, spaceflight and avigation.

钨铜材料是钨和铜的一种合金，综合了钨和铜的优点，耐高温、耐电弧烧蚀、强度高、比重大、导电、导热性好，易于切削加工，并具有发汗冷却特性，作为真空触头材料、电极材料、电子封装材料以及火箭、导弹特殊用途材料等广泛应用于机械、电力、电子、冶金、航空航天等工业。

In this thesis the rotary arc gap-switch in axial magnetic field is fully explored.

本文研究对象是轴向磁场控制的旋转电弧开关。

Fig. 7 Axial magnetic field contact arc

图7 纵向磁场触头电弧

In the second part, the yan jingxiang shuangtongliang model for radiation and the linear time perturbation theory are used in this paper, and the helical magnetic instability is analysed in an axial magnetic field.

第二部分：采用沿径向双通量辐射模型和与时间有关的线性微扰理论，讨论了在轴向磁场中影响电弧螺旋不稳定性的一些因素。

The investigation shows that plenum chamber total pressure has multifarious effects on arcjet thruster operation, and both specific impulse and thrust efficiency can be improved by increasing it befittingly under steady arc.

研究表明，集气腔总压对推力器工作过程具有多方面的影响，在保证电弧稳定的情况下，适当提高集气腔总压可同时提高比冲和推进效率。

Biot-Savart law is used to solve axial magnetic field generated by azimuthal current, this can avoid simulation difficulties due to expansion of simulation regions.

基于FLUENT软件对流体方程和电磁以及电子能量方程进行了耦合求解，从而实现了对真空电弧磁流体动力学模型的仿真。

Arc spray ed aluminium composite coating can increase the service life of reaction caldron up to the design life.

采用电弧喷涂铝复合涂层来解决反应釜的腐蚀问题，可使其达到或超过设计寿命。

The mathematical model of arc discharge for capacitive ignition was established and simulation was made.

建立了容性点燃时的电弧放电数学模型，并进行了仿真。

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。