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| 一张双曲线体; 单叶双曲线曲面 | |||
| 单叶双曲面 | |||
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| 单叶双曲面 | |||
| Russian thesaurus | |||
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| один из двух типов гиперболоидов. Большой Энциклопедический словарь | |||
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