direct heating systemsとは 意味・読み方・使い方

a system of heating a building, called central heating

warm air from a heating system

heating system that burns natural gas

a heating apparatus

the equipment used to warm up a room

an air and water heating system called central heating system

a radiator of a heater

a heating apparatus [system]

an internal-combustion engine

a heating system that uses steam

a modern economical heating system

a device called superheater

a heating apparatus

machines that are used for air-conditioning and heating

a device called a heater

a superheater

a heating apparatus which uses warm water

a water-cooled engine

a kind of heating system, called floor heating

a heating system called {solar fountain system}

any heating apparatus

a system

a system

a radiator of an internal combustion engine

oil‐fired central heating

a management system

a method of cooling machines, called water cooling

liquid-cooled combustion engine

a bed kept warm by an electric heat

a hot-air engine