ніпель іскрової запальної свічки
spark extinguishing / spark-extinguishing
insulator of spark plug
fouled spark plug
constricted air gap spark plug
shanted surfаce discharge spark plug
spark plug body
spark plug central electrode
spark plug rate
starting spark plug
gasket of spark plug
spark plug
T-handle spark plug wrench with jointed socket and hexagonal opening
igniter-spark plug
water jacket plug / water-jacket plug
muzzle gland
gland
propeller stuffing box (stern gland)
electric spark
hot spark
ignition spark
spark ignition engine
distributor vacuum spark control tube
spark
spark timing
spark-erosion machining
spark transmitter
spark-gap anti-TR tube
spark-gap TR tube
spark-gap transmit-receive tube
spark-gap tube
spark off a war
spark a war