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Chen Bo, the institute's deputy director, said there would be two types of address codes for every geographic location: a complicated code for high-precision location and computing; and a simpler code for people's daily use that would help standardize the location systems used by couriers.

Chen Bin, executive vice-president of the China Machinery Industry Federation, said even though the country's machinery makers are facing difficulties such as delayed production, poor logistics conditions and overseas order cancellations after Spring Festival, the industry's growth will be boosted by the government's supportive policies and measures for work resumption.

Cao has been studying the lake's ecosystem since 2006.

Chan said that over the past few months, the social unrest has not only damaged Hong Kong's image as a safe place and an international financial, commercial, trade and aviation hub, but also hit the local economy hard.

Chan's family is also concerned about her health. They often remind her to maintain personal hygiene and bought masks for her.