绒

Whereas, the tapetum of Zhenshan 97A disaggregated at the pollen mother cell stage, the nuclear membrane and the cell membrane disaggregated, the phenomena continued to the binucleate pollen stage. The cytoplasm of the tapetum cells of Zhenshan 97A deposited a few Ca^2＋ precipitates at the pollen mother cell stage.

珍汕97A绒毡层细胞从花粉母细胞时期开始，细胞质内有少量颗粒状的Ca^2＋沉淀；减数分裂时期，绒毡层细胞的内切向壁表面有大量大颗粒的Ca^2＋沉淀；单核花粉时期绒毡层细胞周围集聚一层Ca^2＋沉淀。

The 12940 bp nucleotide sequence of the mitochondrial genome of a brachyura dacapod, Eriocheir japonica sinesis, was determined. The arrangement of 27 genes of the mitochondrial DNA differs from that of the mitochondrial DNA in all other arthropods studied.

中文题名中华绒螯蟹线粒体基因组与16S rDNA遗传标记研究副题名外文题名 The mitochondrial genome of the mitten crab，Eriocheir japonica sinensis(Crustacea：Decapoda：Brachyura) and genetic marker from mitochondrial 16S rDNA 论文作者孙红英导师周开亚教授学科专业动物学研究领域\研究方向学位级别博士学位授予单位南京师范大学学位授予日期2002 论文页码总数80页关键词蟹中华绒螯蟹线粒体基因组遗传标记馆藏号BSLW /2003 /Q959 /30 测定了短尾类十足目动物中华绒螯蟹的线粒体基因组12940 bp的核苷酸序列。

As to the disadvantages of flanneled and static flocking top roller clearers,introduction is given to the sponge rubber top roller clearer regarding the formula and process manufacturing.

针对毛绒布和静电植绒辊的弊端，介绍了海绵橡胶清洁绒套的配方设计及工艺制作，对比说明该产品在制作工艺、使用效果、使用方法和清理方面明显优于毛绒布及静电植绒清洁辊，具有吸附力强，清洁作用好，易于清理及操作等特点，可降低成本，增加效益，值得推广和使用。

In order to study the structure of tapetal degeneration in watermelon, especially on the relation-ship between the tapetal degeneration and pollen development, the light and electron microscopes were used.

为研究西瓜绒毡层退化的结构特点，尤其是绒毡层的退化与花粉发育的关系，用光学和电子显微镜研究了西瓜绒毡层退化过程。

Occurrence of P-and C-tapetal cells is supposed to ensure sustainable supply with nutrients to pollen grains, and therefore contribute to cooperative complement of tapetal degeneration and pollen development.

绒毡层细胞以严格程序分批退化，保证了绒毡层向花粉提供养料的延续性，使得绒毡层退化与花粉发育2种相反的过程协同完成。

The cytoplasm of the tapetum cells of Zhenshan 97A deposited a few Ca(superscript 2+) precipitates at the pollen mother cell stage. At the meiosis stage, there were many large Ca(superscript 2+) precipitates at the inner longitudinal cell wall; there were a layer Ca(superscript 2+) precipitates around the tapetal cells.

珍汕97A绒毡层细胞从花粉母细胞时期开始，细胞质内有少量颗粒状的Ca(上标 2+)沉淀；减数分裂时期，绒毡层细胞的内切向壁表面有大量大颗粒的Ca(上标 2+)沉淀；单核花粉时期绒毡层细胞周围集聚一层Ca(上标 2+)沉淀。

No tapetal cells were formed or tapetam collapsed at very early stage in some anther chamber during the microsporogenesis; Pollen mother cells in another chamber were not developed and microspore vacuolized; Tapetum cells developed abnormally, giantized and crammed the anther chamber; Some tapetum cells developed normally, but PMCs developed abnomally, which deformed at sporogeneous stage, and then were abhensive each other and finally degenerated. Nearly no PMCs could complete the process of meiosis, and form the tetrad, leading to the failure of normal microspore development.

药室的绒毡层细胞不形成或提前解体；药室内的花粉母细胞不发育或小孢子液泡化；绒毡层细胞发育异常，出现巨型化而挤满整个药室；绒毡层细胞虽发育正常，但花粉母细胞发育异常，在造孢细胞时期即开始出现变形现象，随后发生粘连退化；绝大部分花粉母细胞不能完成正常的减数分裂过程形成四分体，导致小孢子退化。

In carpet tufting process,the mechanical properties of tuft needles restrict the raising of the spindle′s speed and also influence the vibrational property of the entire mechanical system of a tufting machine.

地毯簇绒过程中簇绒针的力学和运动性能制约了主轴转速的提高，影响着整个机械系统的振动特性，而簇绒针的运动性能直接取决于传动机构的设计。

In carpet tufting process, the fluctuation of yarn tension is the main reason that causes uneven of carpet surface, so it is very important to stabilize the yarn tension.

由于地毯簇绒机簇绒过程中纱线张力的波动将影响簇绒地毯毯面质量，所以纱线张力的稳定十分重要。

In carpet tufting process, the mechanical properties of tuft needles restrict the raising of the spindle's speed and also influence the vibrational property of the entire mechanical system of a tufting machine. However, the kinetic characteristic of the needles greatly depends on the mechanical design of the driving mechanism.

地毯簇绒过程中簇绒针的力学和运动性能制约了主轴转速的提高，影响着整个机械系统的振动特性，而簇绒针的运动性能直接取决于传动机构的设计。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失