退化

The anatomise observation showed that structure of most ovules was abnormal, which included small embryo sac, female genitalia degeneration, embryo sac degeneration and ovule degeneration. Thus, the female was deep-sterile in No.115 line.

115号株系绝大多数胚珠结构异常，包括小胚囊、雌性生殖器退化、胚囊退化和胚珠退化等4类，115号株系雌性器官为重度败育类型。

Aim at deterioration of breed, put forward the relative and favorableness measures of preventing deteriorating and improve growth condition of Dahlia in aspect of yield and manage.

针对品种退化，从生产与管理两方面提出了相应的防止品种退化，改善大丽花生长发育条件的有利措施。

Rudimentary organs plainly declare their origin and meaning in various ways.

退化器官以各种方式明显地揭示了它们的起源和意义.

We could see that the nerve endings had degenerated.

我们能够见到这些神经末梢已经退化变性了.

Most ovarian follicles undergo an involutional process called follicular atresia.

大多数卵泡都经过退化变为闭锁卵泡.

Your native teachers are mere propagators of degeneracy.

你们的那些土里土气的教师就不过是退化了的传播者而已.

If it was used little or not at all, then it recede.

如果对它使用很少或完全不使用, 它就会退化.

But variety has been aged and degenerated severely for long time because of asexually propagation and lack of effective breeding route.

因长期无性繁殖，品种老化和退化严重，但有性世代退化而缺乏有效的育种途径。

In this paper , a degenerated beam element is developed , evolving from a bilinear degenerated shell element.

从双线性退化板壳单元出发,演绎推导出了一种可以应用于空间有限元分析的退化梁单元.

Ecological degradation mainly includes degradation of terrestrial and aquatic ecosystems.

生态退化主要包括陆地生态系统和水域生态系统的退化.

Based on the study of formation mechanism and simulation method, two simulation methods of the aero-optical effects image degradation are proposed: the degradation simulation in a point spread function space, variable degradation simulation in point spread function space.

在对形成机理和仿真方法研究的基础上，提出了气动光学效应图像退化的两种仿真方法：点扩展函数空间不变的退化仿真，点扩展函数空间可变的退化仿真。

Characteristic defects are of two main types; regression and syneresis.

特征缺陷主要有两类: 即退化和脱水收缩.

Everything has degenerated in this century, even the rascals.

现在这时代,一切全退化了, 连坏种也退化了.

The wings of the chicken have become vestigial; it can no longer fly.

鸡的翅膀逐渐退化, 不会在空中飞行了.

There are serious problems of land degradation in some arid zones.

在一些干旱地带存在严重的土地退化问题。

Finally, the achievability of the capacity region in the degraded Poisson wiretap channel is proved and this paper also proposes another kind of representation of degradation conditions in Poisson wiretap channel.

最后，对退化的泊松窃听信道的信道容量的可达性进行了证明，并提出了泊松窃听信道退化条件的另一种表示方法。

Moreover, hot carriers degradation under dynamic stress and degradation in some special structured devices also presented.

此外, 文中还介绍了交流应力下的热载流子退化现象,以及在一些特殊器件结构中的退化现象.

All animals degenerated in America.

一切动物到了美洲就要退化.

The behaviors of the channel hot electron ( CHE) stress at high temperature in LDD NMOSFET are studied and it is found that there is a linear correlation between SILC degradation and Vth degradation in NMOSFET during CHE stress.

对LDD nMOSFET中的高温沟道热电子应力特性进行了研究，发现高温沟道热载流子应力中SILC的退化和Vth的退化存在线性关系。

The types of land degradation are mainly soil degradation, stone-landification and water erosion.

土地退化类型主要有土壤退化 、 土地沙石化、土地石质化和侵蚀劣地.

A human being has the vestige of a tail.

人类仍有尾巴退化的痕迹.

During 1937 the German museums were systematically purged of " degenerate art ".

1937年期间 “ 退化艺术 ” 被系统地从德国各博物馆清除掉.

The corpus luteum of the previous pregnancy regresses very rapidly.

前次妊娠的黄体很快开始退化.

The role of dopants and contaminants in degradation cannot be ignored.

杂质和污染对退化的作用不能忽视.

Experimental results show that the current gain exhibits a linear relationship with the square root of the stress time, and that the current gain degradation varies with different reverse bias of base-emitter junction.

实验结果表明，电流放大倍数β与退化时间的平方根呈线性关系；不同的反向偏压下，退化的速度也不同。

Three weeks' treatment with Danazol can make EOS atrophy.

丹那哩治疗3周可使EOS萎缩退化。有些滤泡和生殖细胞萎缩退化。

Cataplasia: Degenerative reversion of cells or tissue to a less differentiated form.

退化: 细胞或组织向一种细微变异形式的退化.

For some reason our balancing reflexes degrade with age.

我们的平衡反射,由于某种原因,随着年龄的增长而退化.

Existence of Positive Solutions for a Class of Degenerate and Nondegenerate Stable Diffusion Models

一类退化与非退化稳态扩散模型正解的存在性

If you allow your mind to stagnate, this particular talent will atrophy.

如果你老不用脑，那么这一特殊才能就会退化。