有奖纠错
| 划词

Generative nuclei The two gametic nuclei formed by the division of the generative cell in the pollen tube of angiosperms.

在被子植物花粉管的生殖细胞(应为雄原核译裂成两个配子的核。

评价该例句:好评差评指正

Heteranthery exists in several angiosperm families, such as Melastomataceae, Solanaceae, Lythraceae, Leguminosae and Pontederiaceae, but the aspects and extent of differentiation often vary in taxa.

异型雄蕊在野牡丹、茄、干屈菜、豆、雨久花等多个布,但其化与程度常随类群而异。

评价该例句:好评差评指正

Heteranthery exists in several angiosperm families, such as Melastomataceae, Solanaceae, Lytbraceae, Leguminosae and Pontederiaceae, but the aspects and extent of differentiation often vary in taxa.

异型雄蕊在野牡丹、茄、千屈菜、豆、雨久花等多个布,但其化与程度常随类群而异。

评价该例句:好评差评指正

In roots, however, the concept is still applied, and in some angiosperm roots a fourth histogen zone is recognized, the calpytrogen, which gives rise to the root cap.

然而在根,它还是适用的。在一些被子植物的根,还发现了第四种组织原,即calpytrogen,与根冠发生有关。

评价该例句:好评差评指正

用户正在搜索


business person, business school, business suit, businesslike, businessman, businessmen, businessperson, businessspeak, businesswoman, busing,

相似单词


3G, 401(K), a,

声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。

VOA慢速英语_科技

Flowering plants are also called angiosperms.

开花植也被称为被

评价该例句:好评差评指正
VOA慢速英语_科技

The research explains how angiosperms appeared and became widespread during the age of dinosaurs.

这项研究解释了被是如何在恐龙时代出现并广泛分布

评价该例句:好评差评指正
中高级英语短文

Angiosperms are the most evolved, diverse, widely distributed and adaptable group of plants today.

是当今、分布广、适应性群。

评价该例句:好评差评指正
VOA慢速英语_科技

The team of scientists created a new tree of life for angiosperms.

科学家团队为被创造了一棵新“生命树”。

评价该例句:好评差评指正
VOA慢速英语_科技

Angiosperms are plants that produce flowers and produce their seeds in fruits.

是开花并在果实中产生

评价该例句:好评差评指正
VOA慢速英语_科技

About 80 percent of the world's plants are angiosperms.

世界上大约80%是被

评价该例句:好评差评指正
中高级英语短文

There are 300,000 species of extant angiosperms around the world.

世界上现存有 30 万

评价该例句:好评差评指正
VOA慢速英语_科技

The study identified two periods of diversification among angiosperms.

该研究确定了被两个时期。

评价该例句:好评差评指正
中高级英语短文

The researcher in charge of the study said that flowers and fruits are part of the angiosperm family.

负责这项研究研究员说,花和水果是被家族一部分。

评价该例句:好评差评指正
VOA慢速英语_科技

At that time, 80 percent of major angiosperm species arose.

当时,80%主要被出现了。

评价该例句:好评差评指正
VOA慢速英语_科技

Baker said angiosperms are more successful at reproducing than gymnosperms.

贝克说,被比裸在繁殖方面更成功。

评价该例句:好评差评指正
VOA慢速英语_科技

Gymnosperms and angiosperms both have seeds.

和被都有

评价该例句:好评差评指正
《分钟地球》趣味科普(精选双语)

These angiosperms lost so much water into the air that as they spread, they brought their own rain with them.

这些被在扩张过程中,虽然失去了这么水分到空气,但他们也携带了自身雨水。

评价该例句:好评差评指正
VOA慢速英语_科技

Angiosperms evolved a high diversity of fruit types, permitting effective seed spread.

出了高度样性果实类型,允许有效传播。

评价该例句:好评差评指正
科拉诺斯动画科普

Many insect species are also prolific pollinators, stimulating the reproduction of angiosperms or flowering plants.

昆虫也是传粉者,刺激被或开花植繁殖。

评价该例句:好评差评指正
PBS地球-动趣闻

But early angiosperms didn't have the reproductive structures that made a long proboscis necessary.

但是早期不具备长长喙所必需生殖结构。

评价该例句:好评差评指正
PBS Eons | fauna&flora

For the angiosperms to take over, they had to develop relationships with pollinators.

为了让被接管,它们必须 与传粉者建立关系。

评价该例句:好评差评指正
PBS Eons | fauna&flora

But early angiosperms didn’t have the reproductive structures that made a long proboscis necessary.

但早期不具备 需要长喙生殖结构。

评价该例句:好评差评指正
复习

Grasses are simple forms of angiosperms that bear their encapsulated seeds on long stalks.

草是被简单形式,它们长茎上带有封装

评价该例句:好评差评指正
VOA慢速英语_科技

The study could help scientists better understand disease and pest resistance in angiosperms.

该研究可以帮助科学家更好地了解被抗病性和害虫抵抗力。

评价该例句:好评差评指正
加载更

用户正在搜索


bus-organized, buspirone, bus-rod, buss, bussback, Busser, busses, bussing, busstop, bussu,

相似单词


3G, 401(K), a,
  • 微信二维码

    关注我们的微信

  • 手机客户端二维码

    下载手机客户端

赞助商链接