olemus
seadmete puhul:
valveolekust tööolekusse siirduma
=
(devices:) to transfer the state from passive to active

Wiktionary:
verb
3. (transitive, figuratively) to put in motion or action; to arouse; to excite
4. (intransitive, figuratively) to be excited or roused up; to be stirred up from a dormant, torpid, or inactive state; to be active