Electrochemical batteries, lithium ones in particular, are the best option, converting stored chemical energy into electricity with high efficiency and without toxic emissions.

电化学电池，特别是锂电池，成为了最佳选择，因为它们把化学能转变为电能效率很高并且无有毒物质释放。

youdao

The drying efficiency is high. Due to the upper and lower double layer structure, save space and electricity, improve the drying efficiency.

烘干效率高，采用上下双层结构，节省空间与电费，提高烘干效率。

youdao

The electric energy meter with the built-in nameplate has the advantages of good electricity theft preventing performance, high production efficiency and convenient change of the nameplate.

该内置铭牌电能表的防窃电性能好、生产效率高且更换铭牌方便。

youdao

Even with the ability to convert sunlight into electricity with high efficiency using photovoltaic solar cells, many challenges prevent us from being able to power all our energy needs with solar panels.

WHITEHOUSE: Engage and Connect