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绒毡的英文

音标：[ róngzhān ]  发音:  
"绒毡"怎么读用"绒毡"造句

英文翻译手机手机版

  • carpet

例句与用法

  • A felt resembling velvet , used in making hats
    绒毡一种似丝绒的帖，用于制帽
  • The haploid pollen cells develop in the tapetal zone from spore mother cells
    单倍体花粉细胞由绒毡层提供营养发育。
  • The anther is made up of an outer epidermis , a middle fibrous layer , and an inner nutritive layer , the tapetum
    花药壁由外表皮层，中间纤维层，内部营养层和绒毡层构成。
  • Tapetum ( pl . tapeta ) a food - rich layer surrounding the spore mother cells in the anthers of vascular plants
    绒毡层：维管植物花粉囊内包围孢子母细胞的富含营养物质的一层结构。
  • After the meiosis of mmc , abundant calcium precipitates were accumulated in the cytoplasm of early microspores , and then in pollen wall , especially in the part of germ - pores
    在小孢子发育早期，花药药隔部位的绒毡层细胞质中钙颗粒也明显增加并特异性地分布在其内切向壁上。
  • The anther possesses four microsparangia with its wall composed of four layers : epidermis , endothecium , middle layers and a 2 - nucleate celled tapetum . most of the antheral tapetum are in situ
    单穗升麻的花药具4个小孢子囊药室，囊壁花药壁由表皮药室内壁中层和绒毡层组成。
  • The ultrastructural changes of microspore mother cells and tapetal cells in anthers during the abortion of male sterile cotton " kang a " were observed by comparing with its maintainer " kang b " and by using transmission electron microscopy
    摘要以棉花细胞质雄性不育系“抗a ”为材料，以其同核异质保持系“抗b ”为对照，用透射电子显微镜技术，观察了不育系败育过程中小抱子母细胞与绒毡层细胞超微结构的变化。
  • Their differences are based on many aspects which include characteristics of morphology , anatomy and epidermis of leaf , types of tapetum in anther walls , patterns of endothecial thickenings , and ways of development of endosperms , presence or absence of perisperm , components of photochemistry , and sequences of rbcl
    菖蒲属与天南星科其它属在叶的形态、结构、表面特征，花药绒毡层类型，药室内壁增厚的特点，胚乳的发育方式，外胚乳的有无，植物化学成分， rbcl基因序列等多方面存在着显著的差异。
  • Construction of male sterility expression vector by integration of artificial sense and antisense cdnas of hsp70 into puc18 and puc19 respectively , we can obtain psc and pac . tapertal specific expression promoter ta29 and terminator nos are connected directionally with sense and antisense cdnas of hsp70 extrected and purified from psc and pac . , then integrated into puc18 and puc19 , by which we can build sense and antisense cdna nos ( respectively named plasmid 650 and plasmid 651 ) of ta29 - hsp70 . for the sake of better screening and examination of transformed gene , we cut plasmid 650 , plasmid 651 and 3301 ( containing gusgene bar screening marker gene ) with hindiii and ecor i enzymes , then connect purified fragments of 650and 651 with plasmid 3301 to construct the vector 3301 + 650 and 3301 + 651 . corroboration of whether sense and antisense cdna - nos is integrated into plasmid3301 can be made by plate screening and enzye - cutting analysis
    分别将从psc 、 pac回收纯化的hsp70正、反义cdna与绒毡层特异表达启动子ta29及nos终止子定向连接，然后插入到puc18 、 puc19中，构建成花药特异表达的ta29 - hsp70sensecdna - nos和ta29 - hsp70antisensecdna - nos ，分别称作650和651质粒。为了更好地对转化子进行筛选和检测，用hind和ecor分别对650 、 651及3301质粒(含gus报告基因和bar筛选标记基因)进行酶切，将从650和651回收纯化的目的片段与3301质粒进行连接，再对重组子进行平板筛选和酶切分析确定ta29 - hsp70sensecdna - nos和ta29 - hsp70antisensecdna - nos插入到3301质粒中，构建成3301 + 650和3301 + 651表达载体。
  • The results were as follow : in the process of its male organ development , these are many abnormalities , such as : premature tapetal degradation , giant tapetal cells , the great vocalization of the tapetal cells and inadaptable function of callose enzyme , which lead abnormal and premature degradation microspores and male gametophytes
    实验结果表明： 1猬实的雄性生殖器官在发育过程中，出现绒毡层细胞的液泡化、肥大、提前降解及不适时释放胼胝质酶等异常现象，造成猬实花粉发育过程中出现畸形、解体。
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