tightness test of governing valve

例句：

1. 1. Theengineer conducted a tightness test on thenew valve to ensure it was functioningproperly.
   工程师对新阀门进行了密封性测试，以确保其正常工作。
2. 2. Duringthe maintenance, the technicianperformed a tightness test onthe valve to identify any potential issues.
   在维护过程中，技术人员对阀门进行了密封性测试，以识别任何潜在问题。
3. 3. The tightness test is crucial forensuring the safety and reliability of the valvesystem.
   密封性测试对于确保阀门系统的安全性和可靠性至关重要。