| 释义 |
〔paleobotany〕The branch of paleontology that deals with plant fossils and ancient vegetation.史前植物学：古生物学的分支，研究植物化石以及古代植被〔phytolith〕A minute particle formed of mineral matter by a living plant and fossilized in rock.植物微粒，植物化石：由活植物体内矿物质所组成并形成化石的微粒〔coal〕A natural dark brown to black graphitelike material used as a fuel, formed from fossilized plants and consisting of amorphous carbon with various organic and some inorganic compounds.煤：一种天然的深褐色到黑色石墨样原材料，用作燃料，由植物化石形成，由非结晶碳和各种有机化合物与一些无机化合物组成 |