valve base patch

例句：

1. 1. Thetechnicians were busy patching the valvebase in the factory.
   技术人员忙于在工厂修补阀门基座。
2. 2. The engineers hadto replace the valve base patch after theleak was fixed.
   工程师们在泄漏修复后不得不更换阀门基座补丁。
3. 3. The repaircrew used a special valve base patch tofix the damaged valve.
   维修队使用一种特殊的阀门基座补丁来修复损坏的阀门。