back-up overspeed governor
词语： back-up overspeed governor
解释： 备用超速保安器
词典： 进出口专业英汉词典
back-up overspeed governor 相关解释
back-up overspeed governor 〔名词〕备用超速保安器
back-up overspeed governor 备用超速保安器
备用超速保安器 〔名词〕back-up overspeed governor
备用超速保安器 back up overspeed governor