The rules that use the vocabulary item "recovery" are:

<specific_vehicle_type-pl>

medium tank recovery vehicles

<specific_vehicle_type-sing>

medium tank recovery vehicle

<specific_vehicle_type-not_creatable-pl>

medium tank recovery vehicles

<specific_vehicle_type-creatable-sing>

medium tank recovery vehicle

<specific_vehicle_type-not_creatable-sing>

medium tank recovery vehicle

<specific_vehicle_type-not_creatable>

medium tank recovery vehicle

medium tank recovery vehicles