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Xi also said China will continue to support Ecuador's post-earthquake reconstruction and its disaster prevention work.
Fifthly, the economies should focus on a rules-based approach to improve global governance.
Atomic clocks are the most accurate time and frequency standards. They use vibrations of atoms to measure time. An accurate and ultra-stable set of atomic clocks is essential for global navigation satellite systems.
On innovation cooperation, Li said China would forge ahead opening-up, make market regulation fairer, strictly protect intellectual property rights and create a market-oriented, law-based and international business environment.
The Chinese president arrived in Buenos Aires on Thursday night to attend the G20 summit and pay a state visit to Argentina.
来源：资阳报