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化学元素,元素符号Sc,原子序数21,原子量44.955908(5),属周期系ⅢB族,稀土元素。
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satellite navigation integrity
satellite navigation interoperability
satellite navigation message
satellite navigation receiver
satellite navigation signal
satellite navigation signal modulation
satellite navigation signal simulator
satellite navigation software receiver
satellite navigation system
satellite navigation system coding
satellite navigation time system
satellite nebula
satellite network
Satellite news gathering
satellite news gathering equipment
satellite of Jupiter
satellite of Mars
satellite of Neptune
satellite of Pluto
satellite of Saturn
satellite of Uranus
satellite operating density
satellite operating period
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Satellite Operation
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