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patent retrieval system
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patent retrieval system
专利检索系统
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circumnormal triangle
circumnuclear
Circumnuclear Disc
circumnuclear disk
circumnuclear star formation
circumnuclear star-forming ring
circumnutation
circumoral crown
circum-orthic triangle
circumoval precipitin test
Circum-Pacific tectonic domain
circum-pacific volcanic chain
circumpharyngeal nerve
circumplanetary
circumplanetary flight
circumplanetary matter
circumplanetary orbit
circumplanetary satellite
circumplanetary space
circumplanetary trajectory
circumpolar
circumpolar constellation
circumpolar region
Circumpolar star
circumpolar star
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