Zhao Xiaolong (L) and his wife Zhang Xiaolong repair a cultural relic at the Hubei Museum in Wuhan, capital of central China's Hubei Province, May 16, 2016. Zhang Xiaolong and Zhao Xiaolong, couple who are born in the 1980s, both work on cultural relic restoring at the Hubei Museum. Sharing same interest for cultural relics at same age, Zhao and Zhang, however, specialize in different professional aspects: Zhao devotes himself to cultural relic restoring and Zhang is good at material detection. They build their relationship through cooperation and contribute their passion to cultural history. Photo: Xinhua

Zhao Xiaolong (L) and his wife Zhang Xiaolong repair a cultural relic at the Hubei Museum in Wuhan, capital of central China's Hubei Province, May 16, 2016. Zhang Xiaolong and Zhao Xiaolong, couple who are born in the 1980s, both work on cultural relic restoring at the Hubei Museum. Sharing same interest for cultural relics at same age, Zhao and Zhang, however, specialize in different professional aspects: Zhao devotes himself to cultural relic restoring and Zhang is good at material detection. They build their relationship through cooperation and contribute their passion to cultural history. Photo: Xinhua

Zhao Xiaolong (L) and his wife Zhang Xiaolong take cultural relics for repairing from storeroom at the Hubei Museum in Wuhan, capital of central China's Hubei Province, May 16, 2016. Zhang Xiaolong and Zhao Xiaolong, couple who are born in the 1980s, both work on cultural relic restoring at the Hubei Museum. Sharing same interest for cultural relics at same age, Zhao and Zhang, however, specialize in different professional aspects: Zhao devotes himself to cultural relic restoring and Zhang is good at material detection. They build their relationship through cooperation and contribute their passion to cultural history. Photo: Xinhua

Zhao Xiaolong (L) and his wife Zhang Xiaolong prepare to repair a cultural relic at the Hubei Museum in Wuhan, capital of central China's Hubei Province, May 16, 2016. Zhang Xiaolong and Zhao Xiaolong, couple who are born in the 1980s, both work on cultural relic restoring at the Hubei Museum. Sharing same interest for cultural relics at same age, Zhao and Zhang, however, specialize in different professional aspects: Zhao devotes himself to cultural relic restoring and Zhang is good at material detection. They build their relationship through cooperation and contribute their passion to cultural history. Photo: Xinhua

Zhao Xiaolong (L) and his wife Zhang Xiaolong go home after work at the Hubei Museum in Wuhan, capital of central China's Hubei Province, May 16, 2016. Zhang Xiaolong and Zhao Xiaolong, couple who are born in the 1980s, both work on cultural relic restoring at the Hubei Museum. Sharing same interest for cultural relics at same age, Zhao and Zhang, however, specialize in different professional aspects: Zhao devotes himself to cultural relic restoring and Zhang is good at material detection. They build their relationship through cooperation and contribute their passion to cultural history. Photo: Xinhua

Zhao Xiaolong (L) introduces the history of an ancient painting to his wife Zhang Xiaolong at the Hubei Museum in Wuhan, capital of central China's Hubei Province, May 16, 2016. Zhang Xiaolong and Zhao Xiaolong, couple who are born in the 1980s, both work on cultural relic restoring at the Hubei Museum. Sharing same interest for cultural relics at same age, Zhao and Zhang, however, specialize in different professional aspects: Zhao devotes himself to cultural relic restoring and Zhang is good at material detection. They build their relationship through cooperation and contribute their passion to cultural history. Photo: Xinhua

Zhao Xiaolong (L) and his wife Zhang Xiaolong pose for photos at the Hubei Museum in Wuhan, capital of central China's Hubei Province, May 16, 2016. Zhang Xiaolong and Zhao Xiaolong, couple who are born in the 1980s, both work on cultural relic restoring at the Hubei Museum. Sharing same interest for cultural relics at same age, Zhao and Zhang, however, specialize in different professional aspects: Zhao devotes himself to cultural relic restoring and Zhang is good at material detection. They build their relationship through cooperation and contribute their passion to cultural history. Photo: Xinhua

Zhao Xiaolong (L) and his wife Zhang Xiaolong use microscope to analyse material of cultural relics at the Hubei Museum in Wuhan, capital of central China's Hubei Province, May 16, 2016. Zhang Xiaolong and Zhao Xiaolong, couple who are born in the 1980s, both work on cultural relic restoring at the Hubei Museum. Sharing same interest for cultural relics at same age, Zhao and Zhang, however, specialize in different professional aspects: Zhao devotes himself to cultural relic restoring and Zhang is good at material detection. They build their relationship through cooperation and contribute their passion to cultural history. Photo: Xinhua

Zhao Xiaolong (R) introduces the history of an ancient wooden sword to his wife Zhang Xiaolong at the Hubei Museum in Wuhan, capital of central China's Hubei Province, May 16, 2016. Zhang Xiaolong and Zhao Xiaolong, couple who are born in the 1980s, both work on cultural relic restoring at the Hubei Museum. Sharing same interest for cultural relics at same age, Zhao and Zhang, however, specialize in different professional aspects: Zhao devotes himself to cultural relic restoring and Zhang is good at material detection. They build their relationship through cooperation and contribute their passion to cultural history. Photo: Xinhua