螺旋状的
- 与 螺旋状的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Secondly, according to the stem and leaf anatomy, leaf epidermis, pollen morphology and floral development, it is found that there are no close relations between Acorus and Typhales, especially in the aspect of floral development. In the course of floral development of A. calamus, neither bracteloe primordium nor common primordium occurs in the whole course. Early development of the flower is strongly unidirectional. Three shield carpels develop into a pistil. In Sparganium fallax, each female flower has a bracteole. The bracteole primordium and the floral primordium originate from a complex structure. A single saccate carpel develops into a pistil. In staminate flowers, petal and stamen primordia initiate spirally.
菖蒲属与香蒲目的茎叶解剖特征、叶表皮特征、花粉特征及花器官发生特点等亦存在着明显区别,特别是花器官发生特点差异尤为显著,如菖蒲属花器官发生过程中,没有苞片原基,也不存在任何形式的复合原基,花被与雄蕊原基均以单向性方式发生,雌蕊由3心皮发育而成,具有"盾状心皮"的特点等,黑三棱属则有苞片原基发生,且苞片原基与雌花原基起源于共同的复合结构,雄花的花被原基和雄蕊原基均以螺旋状方式发生,雌蕊由单心皮发育而成,未发现有2或3个心皮原基或其痕迹的现象,体现出"囊状心皮"的特点。
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Cupule bracts imbricate or ± spirally arranged basal bracts usually united into 3 or 4 concentric rings and obscure in L.
Cupule 苞成鳞状或者螺旋状排列的±基本苞通常合并成3或4 同心戒指和偏僻在L。
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The induced supramolecular chirality was found to be dependent on the absolute configuration of lateral residues, that is, the polymers with-configurational oxazolinyl chromophores tended to form chiral aggregates with levorotatory handedness, while polymers obtained from the-monomer offered dextrogyrate one upon the addition of Cu salt. A model, in which side groups would arrange in a helix fashion, is employed for describing the unusual chirality.
由此提出了侧基在Zn/Cu协同配位作用下形成螺旋状排列的模型,即侧基螺旋模型。N-噁唑啉苯基马来酰亚胺与甲基丙烯酸甲酯共聚得到了耐热性能好(热分解温度大于296℃)的光学活性聚合物~(25D=-7.8°(来源:Af4BC论文网www.abclunwen.com)~-36.6°。
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Leaves spirally arranged, spreading radially, or directed forward on upper side of branchlets and spreading on lower side, each inserted on a petiolelike pulvinus, linear, straight or curved, quadrangular, broadly rhombic, or flattened in cross section, stomatal lines adaxial or on each surface, vascular bundle 1, resin canals 2, sometimes small and discontinuous. Pollen cones solitary in leaf axils, rarely terminal, ellipsoid or cylindric; pollen 2-saccate.
螺旋状排列,平展的叶光线,或在小枝和平展在下部边的上面边上向前指导,每着生于一叶柄状叶枕,线形,直或弯曲,四棱,宽棱形,或扁平的在横断面上,在叶腋,很少顶生,椭圆形的或圆筒状里的雄球花单生;花粉2囊。
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Something, such as the thread of a screw or the spiral condenser in a still, that resembles a worm in form or appearance.
有螺纹状的物品某物,如螺旋线或蒸馏器的螺旋冷凝器,在构成或外表上像蠕虫
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"The male , and sometimes the fe male , bears distinctive, backwardly curved horns."
角的形状不一,有的短而尖利,有的螺旋状盘扭,有的长而呈竖琴状。
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Leaves opposite, subopposite, whorled, spiraled, or alternate, usually petiolate, estipulate; petiole sometimes persistent and thornlike; leaf blade simple, margin entire or subentire, sometimes toothed, glands often present between crenations of proximal margin and at base or on petiole.
叶对生,近对生,轮生,螺旋状排列,或者互生,通常具叶柄,无托叶;叶柄有时宿存并刺状;单叶,边缘全缘或者近全缘,有时具齿,通常在近端部和基部的圆锯齿之间或叶柄上有腺体。
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Inflorescences terminating in single or double helicoidal cymes; cymes 1--6-flowered, rarely capitate and 1--6-flowered.
花序顶生在单个的或重螺旋状聚伞花序;聚伞花序1-6花,很少头状和1-6花。
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Secondly, according to the stem and leaf anatomy, leaf epidermis, pollen morphology and floral development, it is found that there are no close relations between Acorus and Typhales, especially in the aspect of floral development. In the course of floral development of A. calamus, neither bracteloe primordium nor common primordium occurs in the whole course. Early development of the flower is strongly unidirectional. Three shield carpels develop into a pistil. In Sparganium fallax, each female flower has a bracteole. The bracteole primordium and the floral primordium originate from a complex structure. A single saccate carpel develops into a pistil. In staminate flowers, petal and stamen primordia initiate spirally.
菖蒲属与香蒲目的茎叶解剖特征、叶表皮特征、花粉特征及花器官发生特点等亦存在着明显区别,特别是花器官发生特点差异尤为显著,如菖蒲属花器官发生过程中,没有苞片原基,也不存在任何形式的复合原基,花被与雄蕊原基均以单向性方式发生,雌蕊由3心皮发育而成,具有&盾状心皮&的特点等,黑三棱属则有苞片原基发生,且苞片原基与雌花原基起源于共同的复合结构,雄花的花被原基和雄蕊原基均以螺旋状方式发生,雌蕊由单心皮发育而成,未发现有2或3个心皮原基或其痕迹的现象,体现出&囊状心皮&的特点。
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TK-2 were generally vibrioid,sometimes helical cells.
TK-2 的细胞大部分为弧状,少数为螺旋状。
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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
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But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
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Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。