back-draught shutter
1обратный воздушный клапан — [Интент] Тематики клапан воздушный EN back draught dampeback draught shutterback draught dampeback draught shutterbackdraught damperbackdraught shutternon return damperone way damperstop damper …
2HMS Eagle (1918) — For other ships of the same name, see HMS Eagle. Aerial view of Eagle in the 1930s Career (United Kingdom) …
3Cannon operation — required specialised crew and gunners, who were first enlisted by the Spanish in the 14th century.Hoffmeyer, p. 217.] The nature of cannon operation often depended on the size of the cannon and whether they were breech loading or muzzle loading.… …
