хід пружини
belt feed pawl spring / belt-feed pawl spring
belt feed lever pivot spring / belt-feed lever pivot spring
four-cycle / four-stroke
power stroke
recoil stroke
stroke
ascending stroke
bottom end of stroke
back stroke
expansion stroke
four-stroke cycle
impact stroke
operating rod stroke
recovery stroke
shock strut stroke
compression stroke
exhaust stroke
intake stroke
four-stroke engine
two-stroke engine
fell stroke
axle suspension spring
drive spring
drive spring guide
leaf spring
recoil spring guide
sear spring
single-strand, high-strength, spring-steel wire
spring breakup
spring mechanism
torsion bar spring
bolt handle spring retaining pin