decompress/ˌdi:kəmˈpres; ˌdikəm`prɛs/ v[Tn](a) gradually release the air pressure on (esp a deep-sea diver returning to the surface) 给（尤指重返水面的深海潜水者）逐渐减压.(b) reduce compression in (a chamber, vessel, etc) 减低（气室、 容器等）内的压力.
牛津英汉双解词典