随着一个按钮，你可以测量之间上升阶段和下降率与海拔高度的同步。

With the push of a button, you can measure ascent and descent rates between stages with altitude simultaneously.

youdao

随着一个按钮，你可以测量之间上升阶段和下降率与海拔高度的同步。

With the push of a button, you can measure ascent and descent rates between stages with altitude simultaneously.

youdao