
This photo taken on Jan. 10, 2025 shows a sand table model of facilities of the Advanced Attosecond Laser Infrastructure in Dongguan, south China's Guangdong Province. (Xinhua/Mao Siqian)

Guests attend the launching ceremony of the construction of the Advanced Attosecond Laser Infrastructure in Dongguan, south China's Guangdong Province, Jan. 10, 2025. (Xinhua/Jin Liwang)

An aerial drone taken on Jan. 10, 2025 shows the construction site of the Advanced Attosecond Laser Infrastructure in Dongguan, south China's Guangdong Province. (Xinhua/Jin Liwang)

This photo taken on Jan. 10, 2025 shows a sand table model of facilities of the Advanced Attosecond Laser Infrastructure in Dongguan, south China's Guangdong Province. (Xinhua/Jin Liwang)