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emerald
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emerald
Encyclopedia
理学
宝石矿物
释
emerald
祖母绿
绿柱石族矿物中的宝石品种。以其艳丽的翠绿色而享有“绿色宝石之王”的美称, 与钻石、红宝石、蓝宝石、猫眼并列称为“世界五大宝石”。
Physics
emerald
祖母绿,纯绿柱石{矿}
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astrometric test of relativity
astrometrist
astrometry
astrometry satellite
ASTRON
astronaut
astronaut candidate selection
Astronaut Center of China
astronaut characteristic
astronaut denitrogeneration
astronaut energy metabolism
Astronaut Group of the Chinese People's Army
astronautical engineering
astronautical societies
astronautic remote sensing camera
astronautics
astronautic specialized technology training
astronautic ZHR
astronaut intestinal microbial ecology
astronaut life saving and survival training
astronaut medical abortion
astronaut medical qualification
astronaut medical quarantine
astronaut operational ability in EVA
astronaut postflight recovery
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