protective atmosphere
短语词组
- protective hydrogen atmosphere 氢保护气氛
- protective furnace atmosphere [热]炉腔保护空气层
- protective atmosphere tempering 保护气体储罐
- protective atmosphere gas storage 保护气体储罐
- protective atmosphere generation system 保护气氛发生装置
- nitrogen base protective atmosphere 氮基保护气氛
- protective atmosphere equipment [冶]保护气氛供应设备
- ammonia dissolution protective atmosphere 氨分解保护气氛
- protective atmosphere casting 保护浇注 返回 protective atmosphere