石密(学名:Alphonsea mollis Dunn)是番荔枝科藤春属植物。常绿乔木,高可达20米,树干通直,树皮暗灰褐色,枝多,叶纸质,椭圆形或卵状长圆形,叶背被长柔毛;叶柄短,花黄白色,单生或双生;花梗被柔毛,有小苞片;萼片小,三角形;果成熟时黄色,卵状或椭圆状,种子近圆形,扁平,淡灰褐色。早春开花,6-8月结果。 分布于中国广东、广西和云南。生长于山地常绿林中。 石密果实成熟时黄色可食。木材坚硬,结构致密均匀,略有韧性,适于建筑、农具和车辆等用材。 (概述图参考来源: )
然后斯密特说,这些石阵环一完成,古代的建筑师们就在那上面覆盖上泥土,最后再在这旁边或者上方放上另一个石阵环。
Then, Schmidt says, once the stone rings were finished, the ancient builders covered them over with dirt.Eventually, they placed another ring nearby or on top of the old one.
然后斯密特说,这些石阵环一完成,古代的建筑师们就在那上面覆盖上泥土,最后再在这旁边或者上方放上另一个石阵环。
Then, Schmidt says, once the stone rings were finished, the ancient builders covered them over with dirt. Eventually, they placed another ring nearby or on top of the old one.
像橄榄石这样的密砂能够抵抗风化,所以能够经受常年不断的潮汐拍打。
Dense sands like olivine are also resistant to weathering, allowing it to endure millennia of constant waves. (Magnification 110x).
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