What officials are there in a water polo game?
水球比赛有哪些裁判人员？
The competition combines underwater robots with water polo game for the first time, in which biomimetic robotic fish play polo in the water.
该项目首次将水下机器人和水球运动结合起来，采用仿生机器鱼在水中进行水球比赛。
The competition combines underwater robots with water polo game for the first time, in which biomimetic robotic fish play polo in the water.
该项目首次将水下机器人和水球运动结合起来，采用仿生机器鱼在水中进行水球比赛。
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