以下为句子列表:
英文: Climatological data from fossil pollen, leaves and wood indicate that the Cretaceous forests of northern Alaska consisted of a mixed canopy that included deciduous conifers with an understory of flowering plants, ferns and cycads.
中文: 由花粉、叶子和木材化石蒐集到的气候资料显示,阿拉斯加北部的白垩纪森林有混合型林冠,包括了落叶针叶林以及林下的开花植物、蕨类和苏铁。
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英文: For example,the spiral arrangement of scale-bract complexes on ovule-bearing pine cones,where the female reproductive or**s of conifers are located,is important to the production of airflow patterns that spiral over the cone's surfaces,thereby passing air
中文: 例如,带有胚珠的松球的鳞苞综合体的螺旋状安排,亦即松柏目植物雌性殖器官的所在位置,对于气流模式的形成与产生殊为重要,而这些气流模式在松球的表现盘旋上升,从而把在空气中飞行的花粉从一个鳞苞传播至下一个鳞苞。
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英文: For example,the spiral arrangement of scale-bract complexes on ovule-bearing pine cones,where the female reproductive organs of conifers are located,is important to the production of airflow patterns that spiral over the cone's surfaces,thereby passing ai
中文: 例如,带有胚珠的松球的鳞苞综合体的螺旋状安排,亦即松柏目植物雌性殖器官的所在位置,对于气流模式的形成与产生殊为重要,而这些气流模式在松球的表现盘旋上升,从而把在空气中飞行的花粉从一个鳞苞传播至下一个鳞苞。
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英文: Resin One of a group of substances occurring in many trees and shrubs, including conifers and certain families of flowering plants.
中文: 树脂:多种乔木和灌木产生的一种物质,包括松柏科的植物和一些显花植物。
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英文: They differ from conifers and other gymnosperms by having the ovule enclosed within an ovary, which after fertilization develops into a fruit.
中文: 被子植物不同于针叶植物和其他的裸子植物,被子植物的胚珠由子房所包被,受精后直接发育为果实。
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