It came after a three-year-old in Central Hubei province died after being forgotten and left alone in a school bus. Police are investigating the case.
It has been tested by public security officials for more than 1,000 hours and has been involved in the detection of more than 20 cases.
It has become an important promotional platform for implementing the Belt and Road Initiative and developing maritime economy, said Li Jinqi, director of China Foreign Trade Center. China Foreign Trade Center is the organizer of China Import and Export Fair, or Canton Fair, the largest trade fair in the country. It has been staged 121 times.
It follows Trump's recent tariff plan on steel and aluminum imports and January's tariffs levied on imported solar panels and washing machines.
It accounts for 19.2 percent of this year's FAI target, part of which will fund construction of 3,500-kilometers of high-speed railway lines.
It can host 200 companies from different sectors, with a capacity of 100,000 workers.
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It also gives the public access to a handy reference in case of illness, he said.
It has agreed with British drugmaker AstraZeneca Plc to receive 120 million doses of a potential COVID-19 vaccine being developed with the University of Oxford.
It enabled them to identify the specific drug TSG12 that provides better therapeutic treatments for asthma and other respiratory disorders.
It declined to disclose the terms of the purchase.