heat engine

Noun

(thermodynamics) Any device which converts heat energy into mechanical work, by moving heat from a source to a sink.

Japanese Meaning

熱を持つ源から低温側へ熱を流すことで、熱エネルギーを機械的な動作（仕事）に変換する装置、すなわち「熱機関」です。

The heat engine at the coastal power plant was carefully inspected to identify opportunities for efficiency improvements.

沿岸の発電所にある熱機関は、効率改善の機会を見つけるために慎重に点検された。

Sense（1）

(thermodynamics) Any device which converts heat energy into mechanical work, by moving heat from a source to a sink.

heat engines

（ plural ）