他的科学专长在于比较行星地质学，特别是有关板块运动、陨石碰撞和天文生物学。
His main scientific interest is Comparative Planetary Geology, and in particular Tectonics, Impact Cratering and Astrobiology.
比较行星地质学是人类认识自然和人类本身形成与演化的前缘学科，是实现太阳系探测三大科学目标的主要手段。
Comparative planetary geology is a frontier discipline on exploring nature and evolution of human being, and a key to reaching the three major goals of Solar system exploration.
比较行星地质学是人类认识自然和人类本身形成与演化的前缘学科，是实现太阳系探测三大科学目标的主要手段。
Comparative planetary geology is a frontier discipline on exploring nature and evolution of human being, and a key to reaching the three major goals of Solar system exploration.
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