塩分 えんぶん濃度 のうど 発電 はつでんではありませんでした
embunno udosa hatsudendewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 塩分濃度差発電

1. Was not salinity gradient power.; Was not a salinity gradient power generation.

Past/Perfective
Negative
Polite
Formal Register
Electrical Engineering