Anh
energy grade line
energy head line
energy line
total head line
Đức
Energielinie
Pháp
ligne d'énergie
ligne de charge
energy grade line,energy head line,energy line,total head line /SCIENCE/
[DE] Energielinie
[EN] energy grade line; energy head line; energy line; total head line
[FR] ligne d' énergie; ligne de charge