当潜艇失事沉没时,艇员可通过自救和外部援救2种方式脱离险境。自救脱险是一种机动、灵活的潜艇乘员自救方式,自救的主动权由艇员掌握。考虑到水压对艇员身体的影晌,因此自救脱险的深度有限,一般不超过180米。集体援救脱险亦称援潜救生,是以抢险救生部队为主,组成水面和水下支援力量,对坐沉水底不能自浮的失事潜艇及艇内人员进行援救。一般来说,援潜救生比自救脱险 When the submarine subsides, the crew members can escape from danger in two ways: self-help and external rescue. Self-help out of danger is a maneuver, flexible submarine crew self-help way, the initiative to save themselves by the crew to master. Taking into account the impact of water pressure on the crew member, so the depth of self-help escape limited, generally not more than 180 meters. Collective rescue and rescue, also known as submarine rescue, is based on rescue and rescue units, which form a supportive surface and submarine force to rescue people in submarines and submarines that can not float on their own feet. In general, aid life-saving rescue than self-help