扫地机器人生产商RoboRock演示爬楼梯模型。

Group 1 - The core point of the article is the demonstration of a stair-climbing model by RoboRock, a manufacturer of robotic vacuum cleaners [1] Group 2 - RoboRock is showcasing advancements in technology with its new model capable of climbing stairs, indicating a potential expansion in functionality for robotic vacuum cleaners [1]