GVM—1014真空直读光谱仪
GVM—1014 type vacuum direct—reading spectrometer
低真空空气测微仪
low vacuum air micrometer
大直径空心桩
large diameter hollow pile
Large diameter pile
分割辊直径
diameter of seperating roller
增大工作辊直径
Increase in diameter of work rolls
大直径径向渗透率仪
full diameter radial permeameter
大直径直缝焊管
Large－ sized straight weld pips
large-diameter butt welded pipe
large diameter longitudinal welded pipe
Large-sized straight welded tube
126kV双断口真空断路器
126 kV double-break vacuum circuit breaker
20kV户外柱上真空断路器
20 kV outdoor on-post vacuum circuit breaker
24kV户外高压交流真空断路器
24 kV outdoor high-voltage AC vacuum circuit breaker