backflow preventer (backwater closure)是什么意思、英文翻译及中文解释
backflow preventer (backwater closure)
词语: backflow preventer (backwater closure)
解释: 防逆流装置
词典: 专利专业英汉词典
backflow preventer (backwater closure)
词语: backflow preventer (backwater closure)
解释: 防逆流装置
词典: 专利专业英汉词典