sealed contact meaning in Chinese

密封触点
密封接点

Rubber seals contacting liquids in solar energy systems
太阳能系统中同液体接触的橡胶密封件规格
Sealing contact surface
密封接触表面
Regularly check whether actions of inhalation , exhalation discs are flexible , and the sealing contact surface of leader and disc is damaged , if so , should be replaced immediately
定期检查吸入、呼出阀盘动作是否灵活，导杆及阀盘接触密封面有无损坏，如有损坏应立即更换。