This technology is using current buoyancy change, floating body to control drain switch of passageway.

该技术利用液流浮力变化驱动浮体升降来控制排水通道的开闭。

youdao

This technology is using current buoyancy change, floating body to control drain switch of passageway.

该技术利用液流浮力变化驱动浮体升降来控制排水通道的开闭。

youdao