英语词典
英语单词 汉英字典 汉英词典 高中 CET4 CET6 TOEFL 考研 IELTS GRE 英语短语 行业英语
汉语字典
偏旁部首 拼音查字 笔画查字 汉字结构 汉字笔顺 汉字拆字
汉语词典
成语组合 成语组词 近义词 反义词
成语词典
词语组合 词语组词
教育工具
古诗词 造句大全 元素周期表

ovule

英[ˈɒvju:l]
美[ˈoʊvjul]

基本释义

n.
胚珠,卵子; 原卵

实用例句

The fertilized ovule becomes the seed, and the ovary becomes the fruit.

已受精的卵子成为种子, 而子房变成了果实.

期刊摘选

The primary chalazal haustorium ramifies around the vascular tissues of the ovule.

初生合点吸器沿着胚珠的维管组织分支.

辞典例句

Chalaza ( pl . chalaxae or chalazas ) The region of an angiosperm ovule where the nucellus and integuments merge.

合点 :被子植物胚珠上的一个区域,在合点处珠心和珠被愈合.

期刊摘选

Funicle ( funiculus ) The stalk attaching the ovule ( later the seed ) to the placenta angiosperm ovaries.

中连接胚珠 ( 之后的种子 ) 和胎座的柄.

期刊摘选

Male reproductive cells travel down the tube and join with the ovule, fertilizing it.

雄性生殖细胞到达花柱然后加入卵子, 使它授精.

期刊摘选

Growing straight , so that the micropyle is at the end opposite the stalk. Used an ovule.

直生的直立生长以至珠孔在茎的另一端的. 用于形容胚珠.

期刊摘选

Testa The hard dry protective covering of a seed, formed from the integuments of the ovule.

外种皮:覆盖在种子外部的坚硬干燥的保护层, 由胚珠的珠被发育形成.

期刊摘选

A stalk connecting an ovule or a seed with the placenta.

珠柄与胚珠或含胎座的种子相接的叶柄.

期刊摘选

Nutrients pass through the funicle to the ovule and seed.

营养物质通过珠柄传递到胚珠和种子.

期刊摘选

Ovarian 2 rooms, ovule much line, style filiform, post tongue shape is compressed.

子房2室, 胚珠多列, 花柱丝状, 柱头舌状扁平.

期刊摘选

Frequently the basal ovule, which is the last one to be fertilized would abort.

最后受精的基生胚珠经常败育.

辞典例句

Funicle ( funiculus ) The stalk attaching the ovule ( later the seed ) to the placenta in angiosperm ovaries.

被子植物 子房中连接胚珠 ( 之后的种子 ) 和胎座的柄.

期刊摘选

The ovule is bitegminous archesporial cell locates under the nucellus epidermis, which develops into functional megasporocyte.

孢原细胞位于珠心表皮之下, 直接起大孢子母细胞的功能.

期刊摘选

The ovule of Hyoscyamus niger is renuinullceate.

天仙子(Hyoscyamusniger)胚珠为薄珠心胚珠.

期刊摘选

The occurrence of more than one embryo in the ovule denotes polyembryony.

在胚珠中有一个以上的胚发生是表示多胚现象.

辞典例句

Seed development in most instances commences following fertilization of the ovule.

大多数种子的形成是从胚珠受精开始的.

辞典例句

Ovarian half, ovule majority, the seed has a wing.

子房半下位, 胚珠多数, 种子有翅.

期刊摘选

英英释义

Noun
  • 1. a small body that contains the female germ cell of a plant; develops into a seed after fertilization

  • 2. a small or immature ovum

同义词

最新英语单词

行业英语