noun
EXAMPLES FROM CORPUS
▪
A solar cell panel repays the electric power needed to manufacture it in its first few hours of operation.
▪
Note that the solar cell has an efficiency of only about 10%.
noun
EXAMPLES FROM CORPUS
▪
A solar cell panel repays the electric power needed to manufacture it in its first few hours of operation.
▪
Note that the solar cell has an efficiency of only about 10%.
Longman DOCE5 Extras English vocabulary. Дополнительный английский словарь Longman DOCE5. 2012