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Cameras placed throughout the space track and recognize customers' movement, and generate activity heat maps to monitor traffic flow, product selection and customer preferences. This data will be used to optimize inventory, product displays and all facets of store management.
Cainiao announced a program last year to build world-class logistics hubs in a number of locations around the world, with the first batch of five cities being Hangzhou, Kuala Lumpur, Dubai, Moscow and Liege.
Cal Jillson, a political scientist and historian at Southern Methodist University in Dallas, said the virtual format of the convention was forced on the Democrats, and even more so on the Republicans, but Democrats have made it tighter and more fast-moving than the traditional national party conventions.
Cai Yalin, an expert with the institute, said the stylobate of the rammed earth structure was about 71 meters in width and 28 meters in depth, which was larger than other similar structures during that period.
CHARLIE ROSE: You want to read black and white.
来源：资阳报