Noun phrase
/ˈɡɾwa a moˈtoɾ/
In Spanish, "grúa a motor" refers to a motorized crane. This term is commonly used in the military context to refer to a crane equipped with an engine used for lifting heavy loads. It is used both in oral speech and written context but is more frequently used in technical manuals or discussions related to military equipment.
The motor crane was used to transport the military equipment to the camp.
El sargento operaba la grúa a motor con destreza.
"Grúa a motor" is not part of any common idiomatic expressions in Spanish.
The word "grúa" comes from the Latin word "gerere," which means "to carry." The addition of "motor" indicates that it is a crane powered by a motor.