check valve lever spring的意思|示意
止回阀杠杆弹簧
check valve lever spring的网络常见释义
止回阀杆弹簧 ... pump check valve ball 止回阀球 check valve lever spring 止回阀杆弹簧 check valve spring 单向阀弹簧; 止回阀弹簧 ...
check valve lever spring相关短语
1、 check-valve lever spring 止回阀杆弹簧
check valve lever spring相关例句
Spring-actuated valve to be used on pump discharge. Swing check with outside lever and spring to be used on sump, sewage and storm drain lines.
弹簧执行机构止回阀用于管道排放。外置操作手柄和弹簧执行机构的旋启式止回阀用于污水坑、排污和雨水排泄管道。