X

X-axis

X axis

X bomb

X-brace

X bracing

X chaser

X гау

X-Х line

X line

X list

X Platoon

X-radar / X band radar

X ration scale

X-ray flаw detection

X-ray inspection

X-ray photon

X-ray radiation

X-ray testing

X-rays

X rays

X ring

X-Ring

X series

X-shaped oil grooves

X time

X-type

X-type aerodrome

X unit

X-X line

X - X-ray – XRAY

XA-180/185

xenon

xenon searchlight

XML Telemetry

XSAPI

xylidine