Also all safety relief valve line branch line and tubing line for instrument will be dried and purged.

此外，所有安全卸压阀、支线和仪表管线应进行干燥和吹扫处理。

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Here is the port side view of the aft ballast tank showing a closer view of the vent valve and tubing.

这里是港口方面鉴于对尾部压载水舱展示了更紧密的看法通风口的阀门和油管。

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The port side is the vent valve and tubing, and the starboard side is the blow tube.

港口方面是发泄阀和油管，和右舷侧是打击管。

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The tenor-bass trombone is approximately the size of a tenor trombone, but for notes in the low register the bass trombone register it has an extra length of coiled tubing that can be engaged by pressing a valve.

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