叶子气孔细胞的这种活动方式有助于古植物学家识别它。
The pattern made by the cells of a leaf’s stomatal openings can help paleobotanists to identify it.
中国古植物学家在内蒙古发现了可能是世界上最早的中侏罗纪时期(1.64亿多年前)草本被子植物化石。
Paleobotanists have found fossils of perhaps world's earliest herbaceous angiosperm plant from the mid-Jurassic period (more than 164 million years ago) in north China's Inner Mongolia.
中国古植物学家在内蒙古发现了可能是世界上最早的中侏罗纪时期(1.64亿多年前)草本被子植物化石。
Paleobotanists have found fossils of perhaps world's earliest herbaceous angiosperm plant from the mid-Jurassic period (more than 164 million years ago) in north China's Inner Mongolia.
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