查询词典 reproductive

He experiment proved that pre-implantation embryos are more sensitive than post-implantation ones, suggested TCDD may exert its effect before implantation, or at this process. 3. The toxicity of TCDD on the early embryo can be of omnifarious. It can strongly inhibit DCR, which represent mother toxicity; It cause un-synchronizated cleavage of pre-implanted zygote and pre-implanted embryo loss; It also decreases implantation sites in the uterus, and continued to effecting the uterus of pregnant mouse, cause the decreased number of fetus before birth. 4. TCDD exposure changed reproductive hormone level of pregnant mouse.

CDD对胚胎的毒性影响可能是多方面的：强烈抑制子宫蜕膜细胞反应，表现出典型的母体毒性；虽然没有影响胚胎转运速度，但造成着床前胚胎的丢失和发育不同步；早期染毒降低了第9天的胚胎着床数，同时使出生前第18天胚胎成活数继续减少。

As a sexual reproductive organ, ovules have received much attention by botanists. Since the nineteenth century, the morphology, structure, ontogenesis, origin and molecular biology of angiosperm ovules have been studied in detail.

胚珠作为被子植物的有性生殖器官一直为植物学家所关注。19世纪以来，人们从形态结构、发生发育、起源及分子生物学等方面对胚珠进行了大量的研究。

Wanxi White Geese ; Reproductive organ ; Ovarium ; Tuba uterina

皖西白鹅；生殖器官；卵巢；输卵管

The results indicate that the reproductive organs of adu-lt female Wanxi White Geese consisted of the ovarium and tuba uterina,Left ovariumand tuba uterina developed normally,but the right one had degenerated.There werefive parts in tuba uterina:the infundibulum part,albumen secreting part,isthmus pa-rt,utera part,a...

结果表明成年皖西白鹅母鹅的生殖器官包括卵巢和输卵管两部分，仅左侧发育正常，右侧早已退化，卵巢大小随鹅的年龄和季节有很大变化；输卵管分为漏斗部、蛋白分泌部、峡部、子宫部和阴道部五个部分。

First we investigated the relationship between the female pleonal expansion and female reproductive condition (i.e., non-ovigerous, ovigerous, or with spermatophores) to clarify the morphological characteristics of female coconut crabs that were able to mate.

首先，我们调查了雌蟹腹变宽和生殖条件的关系（非抱卵蟹、抱卵蟹、或者纳精囊中出现精荚）来确认椰子蟹具有交配能力的雌蟹形态特征。

But last week's conference was organized by two experts with experience in cutting － edge reproductive technology: Panos Zavos, who runs a fertility clinic in Lexington, Ky., and controversial Italian fertility doctor Severino Antinori, who helps post-menopausal women bear children.

但是上星期的会议是由具最先进生殖技术临床经验的两位专家发起的：一位是帕诺斯·扎沃斯，他在肯塔基州的莱克星顿市开了一家生育诊所；另一位颇具争议的意大利生育医生塞韦里诺·安蒂诺里，他帮助绝经后的妇女生育孩子。

The analysis shows that under heat stress, meiocytes degenerate while tetrad cell dispersion fails at microspore formation phase. During pollen maturation phase, loss of orientation of reproductive cells, abnormal vacuolization of tapetal cells, paramorphia or abortion of anther walls and pollens are observed under heat stress.

结果表明，受高温胁迫后，在小孢子形成阶段，水稻花粉母细胞发育异常、四分体无法适时分散；在花粉粒成熟阶段，水稻生殖细胞失去正确的排列方向、绒毡层细胞发生非正常分解、花药壁和花粉粒发生形态异常并出现败育。

The successful rates of Passeriformes reproductive are generally low. The factors include predation of predators, harsh climate, and reusable resources and so on.

影响鸟类繁殖成功的因素很多，包括天敌掠夺、恶劣气候、资源可利用性…等，天敌掠食是小型燕雀目鸟类繁殖成功率偏低的主要原因。

It is primarily dedicated to education and research on biology including Ecology and Evolution, Biomechanics and Comparative Physiology, Animal Sciences, Plant Sciences, Molecular and Cellular Biosciences, Reproductive Biology, Pathobiological Sciences.

主要致力于生物学科的教育与研究，学科领域包括生态学和进化、生物力学和比较生理学、动物科学、植物科学、分子和细胞生物学、生殖生物学、病原菌科学。

Pollination biology on three mixed subpopulations with intermingled Pedicularis rhinanthoides and P. longiflora has been investigated in a three years project. Results show high flowering density can help to enhance pollination facilitation, and then increase reproductive output.

我们选取了两种局限分布在喜马拉雅地区的长管类马先蒿P.rhinanthoides和P.longiflora作了传粉生物学的详细研究，我们的目的在于阐述传粉昆虫在这两种植物生殖隔离中的作用。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！