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By allowing merchants to choose a particular region, they?can better predict the cost of shipping and the amount of time the item?will take to arrive on someone’s doorstep. If?they were required to ship to the entire country, for instance, these merchants may never make their?products eligible for Prime.

But the technology itself has experienced challenges over time. At the early stage, most of the 3D printers were used for rapid prototyping - meaning, mimicking early-stage product mock-ups. Commercialization was not imminent.

But the panda fan feels it's a shame he cannot tell one panda from another. "All of them look the same with the colors of black and white," he said.

But there are inherent problems in telemedicine that should be addressed, he said.

By 2020, China will formally set up a batch of national parks and establish a new national department to take charge of the comprehensive management of these parks, according to the plan. By 2030, the system will be further improved and the management more efficient, it said.