查询词典 arc process

It was fabricated on the photoinjecter, the fabrication process was monitored by an arc UV lamp, and was transferred into the RF cavity in the vacuum when fabrication finished.

实验中在注入器装置上制备Cs〓Te阴极，制备过程中用紫外灯监测阴极性能，而且在真空中将制备好的Cs〓Te阴极传递到RF腔中进行实验。

Spatter can be avoided with new arc length control design and suitable process parameters.

同时，好的弧长控制效果与合理设计工艺参数相结合可以有效的防止双脉冲焊中飞溅的发生。

Based on the analysis mentioned above, arc light sensing was introduced into practical welding process systematically and was improved with spectral method for the first time.

在GTAW过程中，建立了弧光信号同弧长的对应关系。

Numerical simulation results show that the fluid flow in Lost Foam Process was different from that in an ordinary green sand mold, the molten metal flow forwards in a circular-arc shape from the ingate, meanwhile, the nature of the gating system influenced the filling process notably. As the polystyrene pattern decomposition has a strong quenching effect on the flowing metal fornt, a high temperature gradient was formed at the flowing metal front, this resulted in the dropping of temperature of the metal to the liquidus temperature quickly and decreased the flowability of molten metal, the temperature distribution in the metal behind, however, was even. The properties of the pattern and the coating affected the temperature distribution remarkably.

从内浇口开始，金属液呈放射状均匀向前充填，同时浇注系统性质显著影响金属液充型过程的流场；由于聚苯乙烯模样气化吸热对金属液的激冷作用，在金属液流端部区域产生很大的温度梯度，使得端部区域金属液很快降至液相线温度，降低了金属液的充型能力，而后续金属液中温度分布则比较均匀，模样性能、涂料性能显著影响这一温度分布特点。

Finally, it can be concluded for the first time that there was a large time gap between diagentic process of the volcanic rocks related to the Dapingzhang VHMS deposit and the ore-forming process, then a ore-forming model of the Dapingzhang deposit can be made, that is, the deposit passed through two important stages: the ore-forming metals concentrated during formation of the Early Palaeozoic spilite-quartz keratophyre on the island-arc belt, and the mineralization caused by the Late Palaeozoic magmation.

最后，首次提出与块状硫化物矿床有关的火山岩成岩过程和成矿过程可以有较大的时间间隔。在此基础上建立了大平掌矿床的成矿模式，并认为成矿作用可能经历了两个重要阶段，即早古生代岛弧型细碧岩-石英角斑岩建造形成过程中成矿元素的初始富集和晚古生代岩浆活动最终导致成矿。

The Electro-Spark Deposition process is a capacitor discharge, micro-arc welding process that utilizes short duration electrical pulses, discharged at controlled energy levels, to create a metallurgically bonded surface modification.

ESD 工艺是一种电容放电、微弧焊接工艺，利用短时电流脉冲，在可控能量范围内放电，以产生冶金结合的表面功能层。

This talk presents the PhD research done by YuChi Liu at the University of Kentucky Welding Research Laboratory on the control of a novel arc welding process which has been referred to as the quasi-keyhole process.

这个报告主要介绍肯塔基大学焊接过程研究实验室在控制一种称为准小孔的新型电弧焊过程方面所从事的博士论文研究。

By analyzing the arc characteristic of the CO2 short circuiting transfer welding process, a PC analysis and evaluation system for the CO2 welding process was built up.

分析了CO2焊接的短路过程电弧特点，建立了CO2焊计算机采集及评价系统。

During the motion process, the stagnation and back commutation occur and worsen the performances of circuit breaker. According to the real interruption process, a three-dimensional(3-D) model of arc motion under the effect of external magnetic field is built based on magnetohydrodynamic, which can predict the restriking phenomena. With air vents opened to 60%, the restriking phenomena occur under 3mT magnetic field; when the magnetic field is increased to 5mT, the restriking phenomena disappears.

该文以磁流体动力学为基础建立了三维空气电弧等离子体在外部磁场作用下运动的数学模型，此模型可以预测电弧的重击穿现象，并发现当灭弧室的出口面积为60%时，电弧在3mT磁场的作用下运动时出现了重击穿现象，而当磁场增大到5mT时重击穿现象消失。

The mathematical models for overall breaking process of circuit breaker are developed, through which the driving mechanism and the arc chamber, the interruption performance and the opening velocity are closely connected, the breaking process under different interrupting conditions are simulated, then the arcing time difference is determined. The interrupting conditions include line charge current, breaker terminal fault current and short line fault current .

本文建立了一种把操动机构与灭弧室相联系、开断性能与运动特性相联系、一维和二维模型相结合的压气式SF6断路器开断性能的仿真方法，对不同开断条件下（包括线路充电电流开断、不同试验方式的端子短路开断、不同试验循环的近区故障）断路器的开断过程进行了分析，用仿真的方法确定了断路器在不同开断条件下能成功开断的燃弧时差，并给出了开断性能与运动特性之间的关系。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。