同义词： diver frogman
underwater joining diver潜水员水下连接法
diver underwater communication system潜水员水下通信系统
Underwater diver has been an important threat to the targets such as: port, dock and some military facilities.
水下蛙人对于港口、码头和军事设施等目标构成了重要威胁。
同义词：diverfrogman