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发表于 2025-3-21 17:49:05
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发表于 2025-3-21 23:07:32
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发表于 2025-3-22 01:40:15
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Ondines-curse
发表于 2025-3-22 06:35:38
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高射炮
发表于 2025-3-22 10:43:02
Book 1997on and processing of spatial information, needed, e.g., in geographical information systems. Spatial data types provide a fundamental abstraction for modeling the structure of geometric entities, their relationships, properties and operations. This monograph is an extensive survey of this field and
四牛在弯曲
发表于 2025-3-22 13:13:57
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职业拳击手
发表于 2025-3-22 17:57:25
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一再困扰
发表于 2025-3-22 23:15:40
0302-9743 field and introduces a new, general, sophisticated framework for the formal definition and robust implementation of spatial data types.978-3-540-63454-6978-3-540-69551-6Series ISSN 0302-9743 Series E-ISSN 1611-3349
租约
发表于 2025-3-23 05:23:43
ably did not see, as they drafted that introductory chapter, was the speed with which their approach would replace those three in dominance. This chapter, which draws heavily on correspondence with many of the key players involved, has been written to explain this unexpected rise to dominance and to
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发表于 2025-3-23 08:37:55
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