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In the crosses of the autotetraploidy rices used as the females, some seeds could be got, but more seeds were obtained in these crosses by the special treatment that the DH solution was put into the caryopses before the pollination.

在以同源四倍体水稻为杂交母本的杂交组合中,可以获得一些实粒种子,但是,如果在授粉前利用DH溶液对同源四倍体水稻的去雄颖花进行处理后再授狼尾草的花粉粒则能获得更多的实粒种子。

Barley seeds were irradiated with five different doses of 60 Co-γ ray.There were many kinds of chromosome aberration in pollen mother cells,such as bridge,laggards in anaphase I and anaphase II,asymmetrical division in anaphase I and asynchronous division in anaphase II,ring quadrivalent in metaphase I,three pole division and micro-nuclei in telophase I,micro-nuclei in tetrad and some micro-nucleus separates from the tetrad to form polyad.

大麦种子经5种不同剂量γ射线辐照后, M1植株的花粉母细胞出现多种染色体畸变类型,例如后Ⅰ、后Ⅱ中出现桥、落后,后Ⅰ中出现不对称分裂,后Ⅱ中出现不同步分裂,中期Ⅰ出现环状四价体,末期Ⅰ中有三极分裂和微核,四分体中出现微核且有的微核独立于四分体,从而形成多分体。

They are complex polyploids, being partly tetraploid and partly hexaploid

它们是复杂的多倍体,其中一部分是四倍体,一部分是六倍体。

To establish the efficient in vitro regeneration system and polyploidy induction system, the effects of hormones in media on shoot regeneration from leaves of plants and the suitable methods of tetraploid induction were studied.

为建立寒富苹果高效的离体再生体系和多倍体诱导体系,以试管苗叶片为外植体,研究了培养基中激素对寒富叶片再生芽的影响及适宜的四倍体诱导方法。

Its body is square and is on the east, south, west, north four directions, four small reliefs protruding as "four images."

其上是方形柱体,各正对东、南、西、北四个方位,凸出的四个小浮雕为"四象"。

Part one studies the sequence techniques, including the original sequence and its magic cube table, the sequence distribution in each movement and the sequence application techniques in different parts; Part two is a study of chord structure, consisting of fourth-fifth chords that are comprised of tritone, polychords, tall chords, note-cluster chords, as well as whole-tone scale chords; Part three is to analyze the techniques of polyphony, involving the counterpoint of melody and that of rhythm; Part four examines techniques of orchestration, such as those of conventional orchestration and of unconventional orchestration, and the figure of changing track of orchestration acoustics; Part five is a research of musical form structure, including illustrations of musical form structures in all movements, in addition to the effects of timbre, performing methods, dynamics, and density on musical form structural force.

本文将从五个方面来分析研究王西麟《第三交响曲》:第一,序列技术研究,其中包括原始序列及其魔方表、序列在各乐章的分布、多声织体中的序列应用手法;第二,和弦结构研究,其中包括三整音叠置的四五度和弦、复合和弦、高叠和弦、音块式和弦、全音音阶纵合化和弦;第三,复调技法研究,其中包括旋律对位、节奏对位;第四,配器手法研究,其中包括常规配器手法、非常规配器手法、配器音响效果变化轨迹图;第五,曲式结构研究,其中包括各乐章曲式结构图示,以及音色、演奏法、力度、织体密度对曲式结构力的影响。

Morphologically, the two hexaploids are characterized by the general gigantic appearance, diagnostic of the enhancing growth in horizontal direction of such organs as leaves, stems, various compone...

它们在减数分裂时的单价体数目比三倍体显著地减少了,但另外却有少量三价体和四价体出现。

The discriminant analyses,of 28 granitic intrusives distributed in the periphery of the stanniferous granite bodies,by using the Keluo-Lazi diagram,SiO2-Al2O3+Na2O+K2O-CaO+MgO+FeO diagram,Fe-Na+K-Mg diagram and K-Na-Ca diagram,,indicate that the four diagrams can be applied to...

对分布于含锡花岗岩类岩体外围的28个可能含锡岩体进行科勒-拉兹图解、S iO2-A l2O3+Na2O+K2O-CaO+MgO+FeO图解、Fe-Na+K-Mg图解和K-Na-Ca图解判别后发现,壳源酸性花岗岩类完全可以用四图解进行含锡性判别,并且完全符合实际地质特征,大部分都有希望找到伴生壳源型锡矿床;而幔源中基性花岗岩类的含锡性却不适用上述四个图解进行判别。

The main matter is divided into nine chapters: the background of Siling poetry school, textual research on their lives, their relationship with Ye Shi, contemporary poets, textual research on their poetry anthologies, their poetry theories, their poetry works, review on style of late Tang Dynasty in early times of the Song Dynasty and its spread after Southern Song Dynasty.

全文本着从作品出发的原则,尽可能地从四灵所处时代环境出发,再现其生平经历,注重四灵与同时代诗人交往,考察四灵诗集版本流传情况,对于其理论及创作进行精细化研究,并将在四灵前后诗歌史上不同时期出现的&晚唐体&加以分析比较,凸显出四灵诗派的文学史意义。

The sixth chapter studies the relationship between MMs and stylistic feature, taking a dynamic perspective to study style, with the second section of this chapter analyzing the usages of MMs in report text and comment text of news style, the third comparing the different usage of three Chinese translations of Uncle Toms Cabin, the fourth analyzing the usage of MMs in three kinds of modern Chinese text , the fifth comparing the usage of MMs in three disciplines academic text and The sixth discussing the interactional rehtorical model, including the establishment of self-identity of speaker/writer, the expectation to reader/hearer, and the intertextuality interaction.

第六章讨论元话语和各语体语篇语体特征的关系,认为从元话语的角度来分析语体是从动态的角度来探讨言语行为和语体类型之间的关系,第二节讨论了报道体和时评体语篇中元话语使用情况,第三节比较了Uncle Tom's Cabin的文言文、古代白话和现代汉语三个译本中元话语标记使用的差异,第四节比较现代汉语三种语体文本中元话语标记使用情况,第五节讨论三个专业的学术论文中元话语标记的使用差异;第六节讨论元话语与语篇的互动修辞,讨论了语篇中表达者自我身份的确立、语篇对接受者的期待和呼吁和语篇的互动模式,说明元话语研究对探讨语篇的修辞互动模式和结构具有重要的意义。

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推荐网络例句

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时,滚道或滚动元件褪色是很常见的特征。

The lawyer's case blew up because he had no proof.

律师的辩护失败,因为他没有证据。