【电】 effective acoustic center
availability; be good for; efficiency; hold; hold true; in effect
【计】 AV; significance
【经】 be available; in force
sound; vocality; voice
【计】 sound
【化】 sound
【经】 voice
centrality; centre; centricity; core; heart; hub; kernel
【医】 center; centra; centre; centro-; centrum; core