And builds some mathematics models. Using these models and methods, some nature scenes are simulated successfully, for example: terrain, tree, leaf and fern etc.
利用以上方法，建立一些描述具体自然对象的数学模型，成功地模拟了山峦、树木、树叶和蕨类等自然景物。
After more than30years protection the islet is the cover taiwan acacia the beefwood the black pine and the mountain cuckoo the myrtle the tree fern the awn winnow basket just like virgin forest.
经过30多年的保护，如今满岛皆是茂密的相思树、木麻黄、黑松和山杜鹃、桃金娘、树蕨、芒箕，犹如原始森林。
Asiatic tree fern having dense matted hairs sometimes used as a styptic.
亚洲一种树冠茂密的树蕨，有时用于止血。
Biological study and observation of the tree fern Alsophila spinulosa.
标题桫椤生物学特性观察及初步研究。
It is a primitive tree-fern of value in scientific research, and also can be used as an ornamental plant for growing in sheltered places.
黑桫椤属植物起源古老，具有科学研究价值，本种亦适合栽培于阴湿处供观赏。
After a full day of fun in the sun, spend some time rejuvenating at the Fern Tree Spa.
在阳光下玩一整天之后，花一些时间在蕨树水疗振兴。
After a full day of fun in the sun, spend some time rejuvenating at the Fern Tree Spa.
在阳光下玩一整天之后，花一些时间在蕨树水疗振兴。
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