Researching a new type relief well pipe with replaceable filter core
可置换滤芯新型减压井管的研究
NOTE DO NOT USE A PIPE WRENCH TO REMOVE THE RELIEF VALVE ASSEMBLY FROM THE BACKFLOW PREVENTER.
注意不要使用管钳从防回流阀上拆卸安全阀总成。
The Influence on Topography and Relief in South Gulf Beibu and Suspending of Pipe Caused by Typhoon.
台风对北部湾南部海底地形地貌及海底管线的影响
An emergency relief valve is arranged on the air reservoir or the wind pipe connected with the air reservoir.
储气罐或连接储气罐的风管还配装有安全阀。
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