不过要记住的是，上到山顶后应当重新充气。
Just remember to re-inflate when you get to the top of the mountain.
如果垫铁较长时间不使用，可放掉垫铁内气体，使用时再重新充气。
When the mount is not used for a long time, it can be deflated, and repressurized before use.
如果垫铁较长时间不使用，可放掉垫铁内气体，使用时再重新充气。
When the mount is not used for a long time, it can be deflated, and repressurized before use.
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