Safety relief valves shall be labeled for relief pressure rating.
安全减压阀要有标示，标明压力释放级别。
They come equipped with safety relief valves and rupture disks to protect the cylinders from excessive pressure build-up.
它们配备有安全减压阀和破裂盘，以保护钢瓶，防止过多的压力积累。
They come equipped with safety relief valves and rupture discs to protect the cylinders from pressure build-up.
它们配备有减压阀和破裂盘，以保护钢瓶，防止压力积累。
They come equipped with safety relief valves and rupture discs to protect the cylinders from pressure build-up.
它们配备有减压阀和破裂盘，以保护钢瓶，防止压力积累。
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