词汇	be completely at home in
释义	be completely at home in 精通
随便看	main steam inlet sleeve main steam isolation valve main steam lead main steam line main steamline break accident Main steam line break accident main steamline isolation main steam line rupture accident main steam line tunnel main steamline valve bypass main-steam maximum pressure control loop main-steam maximum pressure limiter main-steam minimum pressure limiter main-steam outlet main-steam outlet nozzle main steam parameter main-steam-parameter main steam parameters main-steam penetration isolation valve main steam pipe main-steam pipe mainstays main steam pipeline main steam pipe tunnel main steam piping