The underwater vehicle is called Perseus II. The students recently tested Perseus II in a 95-meter-long tank of water at the Stevens Institute of Technology. The robot costs about $15,000 to build. The students use a video game controller to direct its movements at the bottom of the tank. Devices known as thrusters enable the robot to go up, down and toward its target in the water._______________________这台水下机器人被称之为柏修斯2号.学生们最近在史蒂文斯理工学院的一个95米长的水箱中对柏修斯2号进行了测试. 该机器人的制造费用大约为1.5万美元.学生们使用视频游戏控制器引导其在水箱底部移动.推进型使得这台机器人可以上、下以及朝着水中目标移动.______________________
