起弧

The abscissa at the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of length x and measured counterclockwise from the point(1,0) if x is positive or clockwise if x is negative.

余弦以笛卡儿坐标系原点为圆心的单位圆的圆弦端点的横坐标，弧的长度为x，如果x为正，弧的长度则从（1，0）点按逆时针方向算起，若x为负，则按顺时针方向从（1，0）点算起

The abscissa at the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system,the arc being of length x and measured counter clockwise from the point(1,0)if x is positive or clockwise if x is negative.

余弦以笛卡儿坐标系原点为圆心的单位圆的圆弦端点的横坐标，弧的长度为x，如果x为正，弧的长度则从(1，0)点按逆时针方向算起，若x为负，则按顺时针方向从(1，0)点算起

For the design of the power circuit frame, the in-series resistance plan is applied in commutate circuit to restrain the voltage pulse caused by rising arc; while the parallel connection switch is adopted in inverted circuit to guarantee the reliability of the power at work.

在主电路拓扑设计中，整流电路采用了串联降压电阻的方法来抑制起弧时的电压脉冲；逆变电路采用了双并联开关组方案，以进一步提高电源工作的可靠性。

For this reason and because of the short arcing times, the arc energy developed in the bread is very small.

由于这个原因并且由于起弧时间短。在分断时，产生的电弧能量是非常小的。

The influences of electrolyte composition and concentration,as well as process condition on arcing voltage were measured.

针对目前微弧氧化技术中存在的电能消耗高的问题，对影响铝合金微弧氧化起弧电压的因素进行了研究，分析溶液成分和含量、工艺条件等因素对起弧电压的影响。

Characteristics: Electrode antiseize function Computer automatically delay the unaspirated HF / touch igniting function W-automatic function Xiaoqiu From the Arc / pit filled arc current adjustable Overheating instructions, overload protection, a thermostatically controlled fan, the self-inspection failure Welder software upgrade Technical parameters: Equipped with closed-loop water-cooling system Welding current: 3 - 400 amperes Voltage: 10.1 - 22.0 V

特性： 电极防粘功能电脑自动延缓送气高频/接触引弧功能钨针自动削球功能起弧/填弧坑电流可调过热指示，过载保护，温控风扇，故障自检焊机软件升级技术参数：配备闭环式水冷却系统焊接电流： 3 -- 400安培工作电压： 10.1 -- 22.0 V

The power of its electronic transgression is 2.7ev, 40% less than that of pure tungsten electrode. With a low arc derivation voltage. It's easy to cause arc of high stability. Its current capacity is elevated 30% while its rate of burn spoilage drops low, making it more durable.

电子逸出功约2.7ev，比纯钨低40%，引弧电压低，易起弧，电弧稳定，载流能力提高30%，烧损率低，寿命延长。

Some technical problems arose during the debugging of the accelerator. The ion source did not produce arc. The accelerator tube cracked. The control system was out of order. The transporting capacity of the charge belt degraded. The corresponding reasons were analyzed and some measures were adopted to solve the problems. The drawing voltage was raised to its predetermined position after the ion source produced arc and should be reduced to zero before turning off the accelerator. Transition flange was lathed and the accelerator tube was re-assembled. The control equipment at high voltage was shielded. TVS diodes were installed at the input and output ends.

调试中出现了离子源不起弧、加速管破裂、控制系统失灵和输电带输电能力降低等技术问题，分析了出现这些问题的原因，然后分别采取了相应的措施加以解决：变换工作流程，在每次关机前先把引出电压降为零，开机时等离子源起弧后再把引出电压升到预定值；对过渡法兰进行车加工，重新封装；对高压端的控制设备采取屏蔽措施，在输入、输出端使用TVS二极管，对控制软件进行抗干扰设计；对绝缘气体进行循环干燥等。

Results there were94food poisoning events and1666total sufferers during3years,that is to say,about31.3events and555sufferers per year in average.1died in2003.the food poisonings occurred mainly in the second and third quarter of a year.baoan and nanshan are the most common strict where food poising oc-curred.communality food poison cases are the most common ones,in which the number is71and victims are1429.most food poi-soning cases were caused due to eating unsanitary meats and meat products.bacterium is the main factors resulting in food poisoning（60.6%）.vibrio parahaemolyticus is the first common pathogen of all the bacillary food poisoning（40.3%）.

结果 3年中深圳市共发生食物中毒94起，平均每年31.3起，1666人中毒，平均每年555人。2003年有1人死亡。中毒主要发生季节为每年第二、第三季度。宝安和南山为高发区域，共占53.2%，集体食堂引起的食物中毒起数和发病人数最多，分别为71起1429人。引起中毒的食品主要为动物性食品。食物中毒的致病因素60.6%为细菌性食物中毒，细菌性食物中毒中40.3%是由副溶血性弧菌引起，占细菌性食物中毒的第一位。

Nozzle due to improper installation, such as threaded is not on tight, equipment, improper adjustment of the gear required to water-cooled cutting torch at work, did not seek pass into the flow of cooling water, and frequent arcing, will cause premature damage to the nozzle.

因喷嘴安装不当，如丝扣未上紧，设备各挡位调整不当，需用水冷却的割炬在工作时，未按要求通入流动的冷却水以及频繁起弧，都会造成喷嘴过早损坏。

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。