Appearance: remarkable abnormality such as pressure relief vent opening, electrolyte leaking, etc.
外观：明显缺陷，如防爆阀打开、电解液泄露等。
Caution: Do not direct water streams toward venting oxygen. The water will freeze and plug the pressure-relief vent, which may result in container failure.
警告：禁止直接让水流向正排出的氧。水会结冰并堵塞减压装置的出口，这会造成容器故障。
Vent the air gap and drain line from the relief valve in accordance with code requirements.
按照规程的要求，排出安全阀气隙和排放管道的空气。
Keep water away from vent stacks and safety relief devices that can be plugged with frozen water.
水要远离通风管道和安全减压装置，因为它们会被冻结的水堵塞。
Relief valve or vent valves permit a small pressure to be maintained on the vapor over the oil in the tank (except when the tank is being emptied).
卸压阀或通气阀使罐内油面上方的蒸汽保持微正压(油罐正在排空时除外)。
Emergency vent Manhole Cover is a kind of rapid relief-pressure device. Its technical performance, main material and main parts'materialare the same as HXF-HR type breather manholes.
紧急放空人孔是快速泄压装置，其技术性能、主要零部件材料与HXF-HR呼吸人孔相同。
Emergency vent Manhole Cover is a kind of rapid relief-pressure device. Its technical performance, main material and main parts'materialare the same as HXF-HR type breather manholes.
紧急放空人孔是快速泄压装置，其技术性能、主要零部件材料与HXF-HR呼吸人孔相同。
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