closed diaphragm的意思|示意
美 / kləʊzd ˈdaɪəˌfræm /
英 / klozd ˈdaɪəˌfræm /
封闭式膜片
closed diaphragm相关短语
1、 closed diaphragm wall 闭合地下连续墙
2、 normally closed pneumatic diaphragm valve 常闭型气动隔膜阀