чотириступінчаста драбина
four-cycle / four-stroke
four by four
fingertip formation / finger-four formation / four finger formation
goose-step / goose-stepping / goose step
four-point barb
four-charge gun
four by two
four-barreled anti-aircraft gun
four-groove barrel
four-point
four-stage compressor
four-way valve
four-wheel drive
four-wheel drive truck
four-boss breaker cam
four-stroke cycle
four-stroke engine
Four Tonner (Bedford truck)
fighting step
steppe (step)
step-up
decisive step
out of step
five-step elevator
assembly step
disassembly step
folding step
kick step
stair step
emergency exit step up
step climb
step-down transformer