以下为句子列表：
英文: In seed plants it is the generative cell in the pollen grain, which divides in the pollen tube to produce two sperm cells.
中文: 在种子植物中，它是在花粉粒中的生殖细胞，可以在花粉管内分裂形成两个精子。
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英文: Internal fertilization takes place in the seed plants and some clubmosses and ferns, often by means of a pollen tube.
中文: 种子植物、某些石松和蕨类植物依赖于花粉管完成体内受精。
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英文: There are 1267 species of seed plants belonging to 528 genera in 121 families, including gymnosperms (9 species, 6 genera and 4 families) and angiosperms (117 families, 522 genera and 1258 species) in Laojun Mountain Nature Reserve in Pingshan County, Sic
中文: 摘要通过野外调查和查阅资料，四川省屏山县老君山自然保护区有种子植物121科528属1267种，其中裸子植物4科6属9种；被了植物117科522属1258种。
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英文: Floristic study on seed plants of Qianfoshan Natural Reserve
中文: 千佛山自然保护区种子植物区系特征研究
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英文: Investigation of the alpine tundra seed plants in Changbai Mountain
中文: 长白山高山冻原种子植物的调查
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