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含晶细胞     
相关语句
  crystal cell
     3 The salt-resistant characteristic which is adapt to poisonousness of salt hydronium , such as salt-gland, crystal cell, and soon.
     3.适应盐离子毒害的抗盐结构特征。 如盐腺、含盐液泡包、含晶细胞等。
短句来源
     His found that a large number of crystal cell is one of the typical salt-resistant characteristics in high-saltnity halophytes, and the distribution of salt hydronium inside plants appears obvious regional characteristic of many arrangements: salt-hydronium -- vacuole -- despersed singal crystal cell or vacuole bags which contain salts -- vacuole bags or crystal cell in groups or distributed as groups -- little consecutive crystal cell ring of organ periphery -- consecutive crystal cell ring of organ periphery.
     发现大量的含晶细胞是高盐度盐生植物的一种代表性的抗盐结构特征,并且盐离子在植物体内的分布呈现出明显的多层次性的区域化特征:盐离子→液泡→分散的单个含晶细胞或含盐液泡包→成群或成堆分布的含盐液泡包或含晶细胞→器官外周不太连续的含晶细胞环→器官外周连续的含晶细胞环。
短句来源
  crystalliferous cell
     (2)Some variations within various species have been shown in stratification of secondary phloem, phloem ray dilatation, resin canal density, crystalliferous cell frequency,quantity of ergastic substances in phloem parenchyma cell,phloem ray height, sieve cell length, radial and tangential width, sieve area diagram, height and radial width of upright ray cell, respectively. But no obvious regulation is found.
     (2)次生韧皮部分层现象,射线扩张现象,树脂道密度,含晶细胞频率,韧皮薄壁组织细胞后合物含量,射线高度,以及筛胞长度、径向宽度和弦向宽度,筛域直径,直立射线细胞高度和径向宽度等许多方面存在一定的种间差异,但无明显的规律。
短句来源
  crystalliferous cells
     The main constituents of the axial system are sieve cells, phloem parenchyma cells, crystalliferous cells and radial plates.
     轴向系统的主要成分为筛胞、韧皮薄壁组织细胞、含晶细胞和径向片;
短句来源
     Both Cynanchum thesioides and Messerschmidia rosmarinifolia have crystalliferous cells in their roots.
     另外 ,有的植物根中有含晶细胞 ;
短句来源
  crystal-containing cells
     Crystal-containing cells distribute in both sides of the fiber band.
     含晶细胞分布于纤维束两侧。
短句来源
     phloem fibres and crystal-containing cells in tangential bands alternating with bands of sieve clements, companion cells and phloem parenchyma cells;
     韧皮纤维和含晶细胞与筛管分子、伴胞和韧皮薄壁组织细胞是切向带相间排列;
短句来源

 

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      crystal cell
    The characteristics of a polarization optical isolator based on a liquid crystal cell as the spectrum-tunable quarter-wavelength plate are described.
          
    Conditions for the formation of a spatially periodic structure in a liquid crystal cell at the threshold planar-planar director reorientation in a dc electric field are considered.
          
    Surface driven transition in a nematic liquid crystal cell
          
    Surface driven reorientation effects in a nematic liquid crystal cell caused by light-induced changes of the anchoring parameters were studied.
          
    The electric field-induced orientational transition in a homeotropically oriented nematic liquid crystal cell is investigated.
          
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      crystalliferous cell
    A predominantly sporogenous and crystalliferous cell population was also obtained by second, stage processing of culture harvested from the first 10 to 25 cycles of continuous phased cultivation.
          
    Each chamber of a "chambered crystalliferous cell" is an independent cell containing one crystal.
          
      其他


    The nine xerophytes grown in Gansu,i.e.Haloxylon persicum Bge.,H.ammoden- dron Bge.,Calligonum junceum Litw.,C.arborescens Litw.,C.leucocladum Bge.,C. mongolicum Turcz.,C.caput-medusae Schrenk,Hedysarum scoparium Fisch.et Mey. and Limonium aureum Hill.,all,especially Haloxylon persicum,possessed distinct structural features of xeromorphism.Generally their leaves were extremely degenera- ted or exist as basal leaves.Photosynthesis was carried out by the young green twigs. The epidermis of which had thickened...

    The nine xerophytes grown in Gansu,i.e.Haloxylon persicum Bge.,H.ammoden- dron Bge.,Calligonum junceum Litw.,C.arborescens Litw.,C.leucocladum Bge.,C. mongolicum Turcz.,C.caput-medusae Schrenk,Hedysarum scoparium Fisch.et Mey. and Limonium aureum Hill.,all,especially Haloxylon persicum,possessed distinct structural features of xeromorphism.Generally their leaves were extremely degenera- ted or exist as basal leaves.Photosynthesis was carried out by the young green twigs. The epidermis of which had thickened cell walls and were overlaid with thick cuticle. Underneath the epidermis it was the hypodermis.Inner to the hypodermis,the well- developed palisade layer was shown to have cells containing abundant chloroplasts. Water-storing tissues with large cells were seen central to the palisade tissue.In tran- sverse section,the ratio of the cortex width and stem diameter was greater than that of mesophytes.In contrast,the ratio of cortex width and root diameter was smaller. Crystal cells or mucilage cells probably of xeromorphic charateristics were generally pre- sent in these xerophytes.

    生长在甘肃的9种旱生植物:Haloxylon persicum,H.ammodendron,Calligonum junceum,C.arborescens,C.leucocladum,C.mongolicum,C.caput-medusae,Hedysarum scoparium 和Limonium aureum,都具有显著的旱生结构特征,特别是 Haloxylon persicum 更为突出。它们的叶子往往非常退化,或只有基生叶,光合作用的功能,已部分或全部为幼小的绿色枝条所代替。这些枝条上的表皮细胞壁较厚,外壁上并有较厚的角质层。表皮层下面为下皮层。再内发育出栅栏组织层,栅栏细胞内含有丰富的叶绿体。栅栏组织层里面,则为具有大细胞的贮水组织,其细胞中有大的液泡。在横切面上,这些同化枝的皮层的宽度与枝的半径的比率较大;而在旱生植物的根内,皮层宽度与根半径的比率则一般较小。这些旱生植物的各种组织中都普遍的含有含晶细胞或粘液细胞,这些结构可能是一种抗旱的特性。

    In this paper we have studied fifteen kind of plants of different type about their anatomical structure in deserts of China. The results show that the extreme xerophytes and the xerophytes possess typical xeromorphic structure, and extreme xerophytes are especial striking, such as Ammopiptanthus mongolicus and Haloxylon ammodendron.

    本文研究了我国荒漠15种不同类型植物的解剖结构。结果表明,超旱生和早生植物具有典型的旱生结构。尤以超旱生植物明显,例如沙冬青、梭梭。旱生结构的基本特征是:叶片及角质层厚,具表皮毛、腺毛、瘤状或乳状突起;气孔下陷,栅栏组织及贮水组织发达,构成等面叶及肉质叶;具含晶细胞和粘液细胞;维管束鞘、维管束帽及纤维细胞的存在,增强了植株的坚固性。中生植物叶片及角质层较薄;气孔平置或拱起;栅栏组织及海绵组织同等发育,胞间隙大,为背腹叶,这是典型的中生结构。

    We have observed some Anatomical structures of leaves and assimilative

    本文对新疆几种旱生植物叶(同化枝)的解剖结构进行了观察,结果表明: 沙冬青Ammopiplanthus mongolicus(Maxim)Cheng.t 银沙槐Ammodendron argenteum(Pall.)Ktze. 老鼠瓜Capparis spinosa L. 骆驼刺Alhagi pseudalhagi(M.B.)Desv. 细枝岩黄芪Hedysarum scoparium Fisch.et Mey. 胡杨Populus enphratica Oliv. 白沙蒿Artemisia sphaerocephala Krasch. 心叶驼绒藜Eurotia Adans ewersnanniana Stschegl. 白梭梭Haloxylon persicum Bge.ex Boiss.(对照为中生植物—沙枣Elaeagnus angustifolia L.)等植物具有典型的旱生结构,尤以叶部表现为突出。其特点:叶片厚或叶退化,以嫩枝代替叶行同化功能;叶表皮细胞外壁厚,或有复表皮,表皮外角质层发达,并有表皮毛或单细胞的瘤状突起等表皮附属物;气孔下陷,有的在表皮下有下皮层;叶等面,栅栏组织多层,细胞排列紧密...

    本文对新疆几种旱生植物叶(同化枝)的解剖结构进行了观察,结果表明: 沙冬青Ammopiplanthus mongolicus(Maxim)Cheng.t 银沙槐Ammodendron argenteum(Pall.)Ktze. 老鼠瓜Capparis spinosa L. 骆驼刺Alhagi pseudalhagi(M.B.)Desv. 细枝岩黄芪Hedysarum scoparium Fisch.et Mey. 胡杨Populus enphratica Oliv. 白沙蒿Artemisia sphaerocephala Krasch. 心叶驼绒藜Eurotia Adans ewersnanniana Stschegl. 白梭梭Haloxylon persicum Bge.ex Boiss.(对照为中生植物—沙枣Elaeagnus angustifolia L.)等植物具有典型的旱生结构,尤以叶部表现为突出。其特点:叶片厚或叶退化,以嫩枝代替叶行同化功能;叶表皮细胞外壁厚,或有复表皮,表皮外角质层发达,并有表皮毛或单细胞的瘤状突起等表皮附属物;气孔下陷,有的在表皮下有下皮层;叶等面,栅栏组织多层,细胞排列紧密,栅/海比值大;贮水组织发达;叶内有含晶细胞和粘液细胞;维管束排列密,有明显的维管束鞘。以上特点,各种植物也并非全都具备,而是各自只需具备其中某几个方面,即可达到抗干旱的目的。材料全部取自吐鲁番红旗治沙站植物园。FAA固定,各级乙醇脱水,石蜡包埋,作叶(同化枝)横切面,切片厚8—12微米,番红一固绿对染。

     
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