Exchange the sealing ring of the valve body according to the working condition of rubber sealing ring in order to ensure the sealing performance.
按橡胶密封圈使用性能，根据具体情况定期对阀体的密封圈进行更换，以保证阀门的密封性能。
Analyzes the problem effecting on the stability of storage and reliability of water sealing condition.
对影响洞库稳定性和水封条件的可靠性问题进行了剖析。
It is an important work to check the sealing condition of the packer in oilfield water-flooding development.
井下封隔器的密封状况检查在油田注水开发过程中是一项非常重要的工作。
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