клапан

Etymology
, plural of.

Noun

 * 1) valve
 * 2) vent, stop
 * 3) flap

Etymology
, plural of.

Noun

 * 1) valve
 * 2) vent, stop
 * 3)  valve
 * 4) flap
 * 1) flap

Etymology
.

Noun

 * 1)  valve