3 SEC The PORV (pressure relief valve) opens automatically, releasing steam into a holding tank.
3秒减压阀自动打开，将蒸汽释入一个储存罐。
The releasing one-way valve is used to release the pressure from the casing string and pick up the device properly.
释放单向阀用于释放管柱内的压力使装置顺利从套管中提出。
Valve expert in the field of designing the temperature and pressure-releasing valve. The experts can use English language in the lecture.
减温减压阀设计制造方面的专家，能运用英语进行讲解。
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