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Test at the Changzhou site of Center of National Safety Approval and Certification. (a) shows that the robot was traveling and communicating in the water, where the deepest depth is more than 0.025 m. (b,c) show how the robot climbed the step, and the height of the step was about 15 cm. (d) shows that the robot was traveling on the gravel ground. (e,f) shows how the robot climbed a slope, and the slope was about 26.
