check valve spring meaning in English
单向阀弹簧
止回阀弹簧
Examples
- Features a modular design concept which facilitates complete maintenance and assembly by retaining the spring load . first and second check valve spring modules are not interchangeable
特点在于模块设计概念，通过保持弹簧负载促使日常维护和总成的完善。第一和第二止回阀弹簧模块不能互换。