Energy efficiency can be improved very quickly.

能源效率可以很快提高。

youdao

Energy use efficiency of an engine is improved.

改善发动机的能量利用效率。

youdao

It is true that China's energy efficiency has improved in recent years.

中国的能源效率近几年的确提高了。

youdao

It is true that China's energy efficiency has improved in recent years.

中国的能源效率近几年的确提高了。

youdao