Group 1: Digital Trade Expo Highlights - The Fourth Global Digital Trade Expo opened in Hangzhou, showcasing AI and robotics as major attractions [1] - The "Smart Future" theme area featured six companies from Hangzhou, collectively demonstrating their technological achievements in a scenario-based manner [2] Group 2: Innovations in Robotics - Strong Brain Technology introduced a smart bionic leg that collects weak nerve and muscle electrical signals to assist users in walking naturally across different terrains [2] - Unitree Technology showcased its Unitree G1 robot, capable of dancing and performing martial arts, emphasizing the potential of AI and robotics in various sectors [2] - Tai Xi Intelligent presented a wearable exoskeleton that aids users in carrying heavy loads while climbing or walking, utilizing mechatronics technology for real-time support [2][3] Group 3: Market Applications and Collaborations - Tai Xi Intelligent's consumer-grade exoskeleton is priced between 5,000 to 6,000 yuan and is available for rental in tourist areas at 20 to 30 yuan per hour [3] - The company is collaborating with SF Express to deploy its products in logistics centers to assist with cargo handling [3] Group 4: Cleaning Robotics - Star Species Robotics unveiled the world's first "human-robot collaboration" cleaning robot, capable of performing 3D space cleaning tasks autonomously [3] - This robot is equipped with a water tank and cleaning tools, allowing it to identify stains and utilize various cleaning functions, currently deployed in public areas like airports and metro stations [3] Group 5: VR Technology in Entertainment - The expo featured new entertainment consumption scenarios supported by digital and VR technologies, which were well-received by attendees [4] - Time Space Elf showcased a VR experience allowing users to interact with various dinosaur species, enhancing user engagement through immersive technology [5][7]

Group 1 - The core viewpoint of the articles emphasizes the significant role of the "old-for-new" policy in driving China's economic growth and transforming consumption into a key engine of the economy [1][2][8] - The "old-for-new" policy has led to the purchase of over 100 million home appliances, indicating a rapid update of consumer goods in Chinese households [1][5] - The contribution of wholesale and retail industries to GDP has exceeded 10%, showcasing the impact of consumer spending on economic development [1] Group 2 - The articles discuss the shift in China's economic model from reliance on investment and exports to a focus on domestic consumption, highlighting the diminishing returns of investment in saturated infrastructure [2][4] - The importance of enhancing domestic demand is not only for economic growth but also for increasing China's global influence, as a large domestic market attracts international trade [3][8] - The "old-for-new" policy is seen as a crucial mechanism for achieving sustainable economic and ecological development, contributing to the establishment of a comprehensive recycling system for old appliances [6][7] Group 3 - The articles highlight the dual benefits of the "old-for-new" policy: increasing market scale and improving quality, which together support the expansion of the domestic market [5][6] - The policy has facilitated a digital and intelligent transformation in the home appliance market, with significant growth in smart home products and digital appliances [4][5] - The recycling efforts under this policy have led to a projected recovery of 200 million appliances this year, significantly reducing carbon emissions and enhancing resource self-sufficiency [7][8] Group 4 - The "old-for-new" policy is positioned as a long-term strategy for economic transformation, reflecting China's unique market advantages and forward-looking policy design [8] - The establishment of a nationwide recycling network and the creation of jobs in the reverse logistics industry are key outcomes of the policy, contributing to a circular economy [7][8] - The articles suggest that this policy serves as a model for sustainable development, providing valuable lessons for other developing countries [8]