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河湟谷地
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河湟谷地
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理学
〔山地、丘陵、火山〕
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Hehuang Gudi
河湟谷地
泛指黄河流域龙羊峡至寺沟峡一段和湟水流域及其支流冲积形成的河谷地区。旧称三河间、河湟间。
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alternate blade cavitation
alternate code
alternate cropping
alternated derivative
alternated Egyptian product
alternate determinant
alternate exterior angle
alternate exterior angles
alternate interior angle
alternate interior angles
alternate matrix
alternate matrix geometry
alternate phyllotaxy
alternate product of tensors
alternate series
alternating
alternating algebra
alternating algorithm
alternating bilinear form
alternating chain
alternating circuit
alternating circuit, AC circuit
alternating continued fraction
alternating continuous wave
alternating copolymer
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