свічка підігрівання
sky glow
water jacket plug / water-jacket plug
base plug
delay pellet plug
fill / plug the gap
gas plug
igniter plug
plug
high-explosive point detonating nose plug
gas plug and tube assembly
base plug (of ammunition)
breech plug
bridge plug
cold plug
cylinder filler plug
vent plug
evacuation plug
expansion plug snap ring
filling and drain plug
hard fiber plug
hard steel plug
hot plug
inspection plug gasket
insulator of spark plug
fouled spark plug
fuze-hole plug
constricted air gap spark plug
ignition plug
shanted surfаce discharge spark plug
spark plug body
spark plug central electrode
spark plug rate