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"Doctors and nurses in Shanghai are also provided with positive pressure masks when they perform medical procedures on patients as this poses a threat of infection through aerosol transmission," he said.

"Experience in most countries shows that whenever competition is introduced, it generates buzz and increases market volumes all round," he said.

"Farming relies on weather. The harvest is unstable, but working outside ensures me a steady salary," Chen said, adding that although the environment has changed a lot, the income from working on the farmland is incomparable to working in the factory.

"Even China cannot immediately meet Germany's demand at that time, our explanation has won the trust and understanding of Germany," he said.

"Due to various reasons, such as imprecise location and movements of sea currents, incidents such as domestic fishing vessels entering special economic zones have occurred before, which has resulted in disputes or even violence," he said.