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Polaris
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Polaris
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Polaris
北极星
距北天极最近的亮星。现阶段的北极星即中国星名勾陈一或北辰,西方星名小熊座α。
Astronomy
Polaris
勾陈一; 北极星
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service port attack
service portfolio under value constraints
service primitive
service privacy
service process
service process matrix
service process model
service program
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service prototyping
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service quality evaluation and improvement
service quality function deployment
service quality index system
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service recommendation
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service relations
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service requirement verification
service resource model
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