起弧

The influences on gas flow and dielectric strength recovery properties, which are caused by altering the angle of elevation, the dimension and the profile of arc nozzle of SF6 circuit breaker, were investigated.

SF6高压断路器的喷口对断路器开断过程中吹弧气体的流动特性起着控制作用，从而成为灭弧室的心脏。

Enviroment condition plays an important role, since comma bacillus can live and proliferate in body.

环境卫生条件起着重要作用，因为霍乱弧菌在人体外生存和增殖。

MSHA is a kind of immunogen,and plays a special role in survival of V.cholerae in the environment.

MSHA为一免疫原，同时在霍乱弧菌在环境中存活方面起着特殊作用。

The main production facilities are: groove machine, cutting plate machine, coiling machine, wheel planes, legislation car radial drilling machine, lathe, 25 T lane (lifting height 12 meters), 10 T lane, 5 T lane, AC-DC welder, argon Arc welding machine, the head trimming machines, carbon steel, stainless steel submerged arc welding, plasma cutting machine, elbow, etc. more than 100 sets of equipment.

主要生产设备有：坡口机、剪板机、卷板机、滚轮架、立车、摇臂钻床、车床、25T行车（起吊高度12米），10T行车、5T行车、交直流焊机、氩弧焊机、封头切边机、碳钢、不锈钢埋弧自动焊机、等离子切割机、弯管机等100多台套设备。

Mercury arc rectifiers have been replaced by silicon semiconductor rectifiers and high power thyristor circuits, from the mid 1970s onward.

矽半导体整流器和大功率晶闸管电路，从中期七十年代起已被取代汞弧整流器。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。