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By supporting the forum, the Chinese government would like to promote exchange, understanding and friendship, Yu said.

For instance, the bridge is designed to be used for 120 years. "Anticorrosion and quake-proof measures were improved so as to make the goal possible," he said.

The Paris Agreement was adopted by 196 parties in Paris in 2015 and it went into effect in November last year. The pact sets a target of holding the global average rise in temperature below 2 degrees Celsius above pre-industrial levels, and preferably below 1.5 degree Celsius.

"What really impresses me with COMAC and with Chinese aerospace industry as a whole is that, we have traditional aerospace cycles in Europe and North America every 10, 15 years," Merluzeau said.