emergency relay valve是什么意思、英文翻译及中文解释 本文已影响 388人 emergency relay valveing-bottom: 66.56%;"> 词语: emergency relay valve解释: 紧急继动阀词性: 名词词典: 造纸专业英汉词典 emergency relay valve 相关解释 紧急继动阀 emergency relay valve;relay emergency valve 紧急继动阀 emergency relay valve