annulus safety valve是什么意思、英文翻译及中文解释大纲
annulus safety valve
词语: annulus safety valve
解释: 环形安全阀
词性: 名词
词典: 航海专业英汉词典
annulus safety valve 相关解释
annulus safety valve 〔名词〕环形安全阀
annulus safety valve
词语: annulus safety valve
解释: 环形安全阀
词性: 名词
词典: 航海专业英汉词典
annulus safety valve 相关解释
annulus safety valve 〔名词〕环形安全阀