check valve spring的意思|示意
止回阀弹簧
check valve spring的网络常见释义
单向阀弹簧 check valve spring 单向阀弹簧; 止回阀弹簧..
止回阀弹簧 ... 减速弹簧retarding spring 止回阀弹簧check valve spring 止回阀座check valve seat ...
check valve spring相关短语
1、 ball check valve spring 球形单向阀弹簧
2、 spring ball check valve 弹簧球式止回阀 ; 弹簧球式
3、 check-valve spring 止流阀弹簧