heavy-water reactor

gas-cooled heavy water-moderated reactor

heavy water moderated reactor

water-cooled reactor (WCR)

automatic heavy barrel rifle / heavy barrel automatic rifle

heavy-armored (heavy armoured)

heavy-weight torpedo / heavy weight torpedo (HWT)

nuclear reactor

reactor

reactor compartment

reactor discharge

reactor shielding

orbital nuclear reactor

space nuclear reactor

package reactor

small modular reactor (SMR)

heavy water

heavy flow of water

heavy water analyzer

heavy water plant

heavy-water

heavy-water pile

water jacket plug / water-jacket plug

aircraft-carrying heavy cruiser

heavy armament

heavy assault rifle

heavy atom bomb

heavy bomber

Heavy Bomber Aviation Regiment (HBAR)

heavy cannon

heavy cruiser

heavy defense

heavy drop resupply