維管束原 的英文怎麼說

中文拼音 [wéiguǎnshùyuán]
維管束原 英文
desmogen
  • 維 : Ⅰ動詞1 （連接） tie up; hold together; link 2 （保持; 保全） maintain; safeguard; preserve; keep ...
  • 管 : Ⅰ名詞1 （管子） pipe; tube 2 （吹奏的樂器） wind musical instrument 3 （形狀似管的電器件） valve;...
  • 束 : Ⅰ動詞1 （捆; 系） bind; tie 2 （控制; 約束）control; restrain Ⅱ量詞（用於捆在一起的東西） bundle;...
  • 原 : Ⅰ形容詞1 （最初的; 原來的） primary; original; former 2 （沒有加工的） unprocessed; raw Ⅱ動詞（原...
  • 管束 : 1. （約束） restrain; check; control 2. （成捆的管子） pipe bundle; pipe column
  1. Procambium ( procambial strand ) the layer of cells that gives rise to the vascular tissue

    原形成層（原形成層束） ：形成維管組織的一層細胞。
  2. In seed plants the protoxylem occurs at the innermost edge of the vascular bundles in stems, but external to the later - formed xylem in roots

    在種子植物中，原生木質部發生在莖的維管束的最內方，但在根中，位於後生木質部的外方。
  3. And the viviparous plantlets of both species are formed for the differentiation of floral primodium, but the position if viviparous plantlets is different. for the species of polygonum viviparum l., the viviparous plantlets are formed in the inflorences, while in saxifraga cernua l are in the leaf axils. on the results of observation for morphology and anatomy, vascular bundles of viviparous plantlet are connected with that of their parent

    從來源和性質看，二者的胎生苗均由花原基直接分化形成；但從位置上看，珠芽蓼在花序中形成胎生苗，而珍珠虎耳草則在地上莖的葉腋部位形成胎生苗；從形態解剖角度觀察，胎生苗的維管束與母體的維管束直接相連，胎生苗脫落時，其上已長出葉片1 - 3枚。
  4. The analyses of these three types of data in the hybrid and its parents could provide new information on genomic composition and evolutionary mechanisms of the hybrid. the main results are the followings : 1. rdna fish chromosomal localization of 18s and 5s rdna was carried out for two soft pines ( subgenus strobus ) and five hard pines ( subgenus pinus ) using fish

    Rdna熒光原位雜交（ fish ）通過對華山松和白皮松兩種單維管束亞屬植物及油松、雲南松、高山松、馬尾松和南亞松等五種雙維管束亞屬植物的18srdna與5srdna的熒光原位雜交，結果表明： （ 1 ）裸子植物的18srdna位點數目明顯多於二倍體被子植物。
  5. When inadequate n was added, the chloroplast structure in mesophyll cell was damaged in ear leaf, the amount of carbohydrate decreased in mestome sheath, and excessive n - redistribution and n - transportation to grain from vegetative mass appeared, which resulted in earlier leaf senescence. excessive n application led to too high activity of nitrate reductase, excessive vigorous nitrogen metabolism and too much exhaustion of carbohydrate in ear leaf, which resulted in the lack of enough carbohydrate in the lower leaf, meanwhile, the expansive chloroplast grana lamellae in leaf mesophyll cell and starch grain without nuclear in mestome sheath cell was observed, which led to the decrease of chlorophyll content and photosythetic capacity in maize leaf, then the early senescence occured

    氮肥用量不足導致穗葉葉肉細胞葉綠體結構性差，維管束鞘細胞碳水化合物累積減少，營養體氮素再分配率大而引起葉片早衰；而過量供氮則導致生長後期硝酸還原酶活性過高，氮素代謝過旺，消耗了大量碳水化合物，以致下位葉不能得到充足的碳水化合物供應而提早脫落，同時葉肉細胞葉綠體片層結構膨脹，呈「肉汁化」特徵，維管束鞘細胞澱粉粒大量消耗，無核澱粉粒出現，從而葉片葉綠素含量下降，光合能力降低而出現早衰。
  6. Chapter 6 discusses post processing of fiber paths and collision control during winding, proposes mathematical principles and detail algorithm of generating machine paths. finally, examples of elbow fabrication are shown in chapter 7 to prove the reliability of this system

    第六章討論了纏繞彎管cam ? ?纖維路徑后處理，研究了纏繞機加工彎管時各運動軸之間的碰撞控制和纖維束扭曲問題，給出了生成機器路徑的數學原理；建立了計算機器路徑的方程組，並給出了脫機生成機器路徑的具體演算法。
  7. In order to maintain the intent of designers and satisfy them, the concept of the cellular model is put forward based on old design system. methods of naming topological entities and managing constraints are illustrated in this system

    為了能夠正確地維護設計者的設計意圖和滿足用戶的需求，本文在原系統的基礎之上，提出了基於細胞元的特徵約束模型，並給出了在拓撲元素編碼與約束關系管理體系之下，特徵拓撲元素編碼和約束關系管理的方法。
分享友人
分享到 Line

分享到臉書