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母树林
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母树林
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seed production stand
母树林
在优良天然林或确知种源的优良人工林基础上,经过留优去劣的疏伐,为生产遗传品质较好的林木种子而营建的采种林分。
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pig breeding structure
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Pig-Dragon Shaped Jades
pig-ear mussel
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pigeon competition
pigeonhole principle
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Pigeon Island National Landmark
pigeonite
pigeon milk
pigeon pairing production
pigeonpea
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Piglet
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