化石植物学家

It contains entries dealing with various aspects of extant and fossil American plants and fungi, including systematics and floristics, morphology, and ecology, as well as economic botany and general botany (publications dealing with botanists, herbaria, etc.).

索引条目涉及美国现存的、化石的植物和真菌类的各方面信息，包括系统学、植物区系地理学、形态学和生态学，经济植物学和普通植物学，还涉及植物学家和标本的出版物信息。

Furthermore, orchids grow in moist habitats that don't favour fossilization, says Norris Williams, a botanist at the Florida Museum of Natural History in Gainesville:"If you're in a wet tropical forest and you fall to the ground, there's a good chance that you're going to rot before you can fossilize."

此外，适宜兰花生长的潮湿环境却并不适合化石的形成，Gainesville市佛罗里达州自然历史博物馆的植物学家Norris Williams说，"如果身处潮湿的热带雨林并暴露在地面，那么在形成化石前，就很可能已经腐败。"

Study according to paleobotany home fossil confirms,-692379968 years before, in a lot of water area places of the Northern Hemisphere Dou Youlian belongs to floral to distributing.

据古植物学家研究化石证实，一亿三千五百万年以前，在北半球的许多水域地方都有莲属植物的分布。

Palaeontologists successfully obtained the essential information of palaeo-CO2 change form fossil plant leaves. This method has been recognized as one of the effective approaches for tracking paleo-CO2 information from geological record.

古生物学家通过对植物化石叶片的研究，成功地获取了地质历史时期古大气CO2浓度变化的信息，因而这一方法日益受到科学界的重视，被认为是从地质记录中获取古大气CO2浓度的最有效途径之一。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐