电弧作用

In the occurrence of arcs discharges, spark discharges and corona discharges, sulfur hexafluoride (SF6) would be decomposed to complicated byproducts such as carbon dioxide (CO2), carbon tetrafluoride (CF4), etc.

六氟化硫（SF6）气体在电弧、电火花和电晕放电的作用下会发生分解，产生二氧化碳（CO2）、四氟化碳（CF4）等分解产物。

Surface roughening is very important in arc spraying, as the coating quality depends greatly on its treatment result.

表面粗化在电弧喷涂中具有重要作用，涂层质量很大程度上取决于表面粗化预处理的效果。

Now in A-TIG welding, the coefficient of arc shrinking and the weld pool surface tension result in penetration increased.

目前认为A- TIG 焊使熔深增加的机理是电弧收缩和表面张力共同作用的结果。

According to the calculation, an extra high current density exists at the leading edge owing to the arc thermal inertia.

由于电弧的热惯性作用，阳极中心电流密度变化前沿存在着尖峰。

When heavy load is transmitted along a 750 kV transmission line, the connected shunt reactors can lead to big voltage decreasing, so transmitting capacity of line is limited greatly.

为解决线路传输能力与抑制过电压的矛盾，分析研究了并联电抗器在抑制750kV线路跳闸过电压、加速潜供电弧熄灭以及抑制合闸过电压等方面的作用，并由此提出了750kV线路保护与并联电抗器之间动作配合关系。

The basic principle to form foamed slag and the factors to affect the fomation are introduced Combined with the practice of using the technology of submerged-arc smelting with foamed slap in Electric Furnace Steelworks of Tangshan Iron and Steel Company, its role In electric-arc steel-making production is stated.

介绍了泡沫渣形成基本原理及影响其形成的因素，并结合唐钢电炉炼钢厂采用泡沫渣埋弧冶炼工艺的实践，阐述了该工艺技术在电弧炉炼钢生产中的作用，具有推广应用的价值。

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。