查询词典 cycads

Ginkgo and cycads are the only two lineages bearing multiflagellated spermatozoids in all extant seed plants.

银杏和苏铁类植物是现存种子植物中仅有的2个具多鞭毛游动精子的类群。

The seed-ferns declined, and there was a great increase in the number and diversity of cycads, palmlike gymnosperms, and conifers.

种子蕨趋于减少，而苏铁类、指状裸子植物和球果类，无论是多样性还是在数量上都有大幅增长。

The strobili of gymnosperms and cycads are also termed cones.

另外，还可将裸子植物和苏铁植物的球果称为 cones。

The initiati on and development of archegonia in Gingko,compared with those of cycads, w ere liked to be more primitive at the evolutional level.

银杏雌配子体及颈卵器的发生与发育，和苏铁类植物比较，在演化程度上可能更为原始。

They expected to find evidence of well-known Late Cretaceous vegetation such as conifers and cycads.

他们原本期望发现晚白垩世时期著名植物如针叶树和苏铁存在的证据。

The dominant vegetation on land in the early Cretaceous was forests of cycads, conifers, gingkgoes and ferns.

在白垩纪早期陆地上占统治地位的植被是苏铁，针叶树，银杏和蕨类。

Hope one day I can see the beautiful flower of the cycads revoluta!

希望有一天看到铁树开花！

This paper reported the studies on systematics and evolution to 40 species and 2 forms of cycads that distributed and long-term introduced plants in China.

本研究对中国所分布和长期引种栽培的苏铁植物共40个种，2个变型进行了细致的系统分类和演化方面的研究。

The Jurassic has been called the ' Age of Cycads '.

侏罗纪又被称为&苏铁的时代&。

Jia-rui Chen of the Chinese Academy of Sciences studies living cycads in south China, one of the richest areas of cycad diversity in the world.

中国科学院陈贾锐研究生活在中国南方的苏铁，是世界上苏铁多样化最丰富的地区之一。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。