It provides a theoretical basis for harvesting the low-frequency vibration energy in environment and designing self-powered device of sensor network.

为采收环境低频振动能量，实现网络传感器自供电装置提供了设计的理论依据。

youdao

This self-powered filter tank is a purified water filtering device by using a set of self-powered mechanical device to realize auto-control.

自力式机械滤池是采用一套自力式机械装置来实现自动控制的净水过滤装置。

youdao

This invention provides a set of self-powered mechanical device, an auto-regulating movable weir-plate, a back-flushing buffer and lift-pull valve.

本发明提供一套自力式机械装置、自动调节活动堰板、反冲阻流器、提拉阀。

youdao

These capabilities are packed into a device barely larger than a USB stick that is self-powered through a monitor and easily fits inside your pocket.

ENGADGET: Dell's Project Ophelia: an Android 4.0 stick that turns any display into a PC