【电】 phase-veversal protection
in reverse; on the contrary; turn over
【医】 contra-; re-; trans-
each other; mutually; appearance; looks; look at and appraise; photograph
posture
【化】 phase
【医】 phase
protect; safeguard; ensure; patronize; preserve; shelter; shield; preservation
protection
【计】 protection
【化】 covering
【医】 conservancy; protection
【经】 custody; safeguard