- 更多网络例句与平行脉的相关的网络例句 [注：此内容来源于网络，仅供参考]
-
The results of character evolution history reconstruction shows the SC in PT and AD clade might be a homoplasy character; also, the SC in PT clade might have multiple origins. SC in Pteridaceae has some special characteristics:(1) the cell long axes usually run parallel to the lateral veins;(2) Most of Pteris and Adianum species have VSC only in lower epidermis;(3) Species have ISC also have VSC.(4) Presence of spicular cells is highly correlated with the long veinal epidermal cells. Species have type III silica deposition type usually have longer and narrower veinal epidermal cell compared with ordinary epidermal cells; Species have type IV silica deposition type also have long epidermal cells, but not significantly different from ordinary epidermal cells.
本实验中亦发现凤尾蕨科之矽异形细胞具有几项特色：(1)矽异形细胞之长轴多与叶片侧脉方向平行(2)发现多数铁线蕨属以及凤尾蕨属植物仅下表皮具有脉上矽异形细胞；(3)具有脉间矽异形细胞的种类会同时具有脉上矽异形细胞；(4)长条形的侧脉上表皮细胞与矽异形细胞具有相关性，仅具脉上矽异形细胞的分类群之脉上表皮细胞均较一般表皮细胞细长；具有脉间矽异形细胞之物种之脉上表皮细胞亦为长条形但形态与一般表皮细胞常无明显形态差异。
-
In particular, by introducing the force constraint between midrib and parallel venation, the dynamic simulation of leaves can be vividly performed.
针对以往研究中植物建模主要集中在对植物器官静态结构的仿真，通常会忽略树叶或花瓣的厚度问题，本文根据阔叶植物的自然属性，利用植物的茎枝和叶片结构的相似性，采用具有厚度信息的3D叶片建模方法，通过叶片平行脉位置方向的弹性约束关系来有效控制叶片的动态仿真。
-
Leaves petiolate; leaf blade papery to membranous, secondary veins 1 or 2 on each side of midvein, tertiary veins parallel, margin usually serrulate.
叶具叶柄叶片纸质到膜质，次脉在中脉两边各1或2，平行的第三脉，边缘通常有细锯齿的。
-
Fruit indehiscent, samaroid silicles, transversely oblong or ovoid, 1-seeded, thin walled, with woody and coarsely reticulate venation, angustiseptate, sessile, transversely 2-winged, 2-16-spined; wings prominent, longer or shorter than main part of fruit, with 3-20 subparallel veins extending full length; spines often unequal in length, at least some subparallel to pedicel, those on the seed-bearing fruit half longer; replum and valves margin united into a longitudinal vein; septum complete; style absent, obsolete, or conical and to 5 mm; stigma capitate, entire, long papillate.
果不裂，突出的翅，长或短于主要果，具3-20近平行脉深裂延长全长；刺通常不等长，在花梗，那些在种子取得成果半长上近平行的一些的至少；假隔膜和阀门边结合成为一纵向脉；隔膜完全；花柱无，废退，或者圆锥状和对5毫米；柱头头状，全缘，长具乳突。
-
Leaves parallel veined, without clear, transverse venation between main veins; filaments not forming a ring.
平行脉的叶，没有清楚，在主脉之间的横向脉序；花丝不形成一枚戒指。
-
They all have the typical structure of leaf of C4 plant, but out of the ordinary is that the structure of the midrib is alike the parallel veins and there is a layer of fiber cells between the phloem and the bundle-sheath of vein in the midrib and big parallel veins while the outer wall of the bulliform cells is less cuticularized.
摘 要：以7个杂交狗牙根品种的叶片进行解剖研究，结果表明，各品种均具禾本科 C4植物叶片典型结构，其独特处是：中脉结构与平行脉相似；中脉维管束、平行脉大维管束的维管束鞘内侧韧皮部外有一层纤维细胞；泡状细胞外壁很少角化。
-
Stipules (2-)3-5 mm; petiole 3-5 mm, sulcate adaxially; leaf blade narrowly lanceolate or narrowly elliptic, 7-15 × 1.5-3 cm, chartaceous, glabrous on both surfaces, base narrowly cuneate, margin with dense and unequal glandular teeth, apex acuminate; midvein prominent on both surfaces; secondary veins numerous,± parallel; veinlets
托叶(2-)3-5毫米；叶柄3-5毫米，正面具槽；叶片狭披针形的或狭椭圆形， 7-15 * 1.5-3 厘米，纸质的，两面无毛，基部狭楔形，边缘具紧密的和不等长的具腺的齿，先端渐尖；中脉的两面突出；次脉多数，多少平行；细脉
-
Leaves petiolate; leaf blade secondary veins 2-4 on each side of midvein, tertiary veins parallel, margin entire or denticulate.
叶具叶柄叶片次脉2-4在中脉两边各，平行的第三脉，边缘全缘或具小齿。
-
However, the complexity of data generation and operation coordination/synchronization of these parallel arithmetic units is prohibitive in most embedded systems.
但如何有效率地在这些平行操作的运算单元间进行资料传输及交换，同时提供其在每时脉所需要的运算元则是极大的挑战。
-
Like most monocots, orchids generally have simple leaves with parallel veins, although some Vanilloideae have a reticulate venation.
就如同大部分的单子叶植物，兰科植物通常具有有平行脉的单叶，尽管一些香荚兰亚科植物具有网状叶脉。
- 更多网络解释与平行脉的相关的网络解释 [注：此内容来源于网络，仅供参考]
-
midrib：中脉
其基部直接着生在叶鞘顶端,无柄少数禾草及竹类的营养叶则可具叶柄(petiole)],叶片有近轴(上表面)与远轴(下表面)的两个平面,在未开展或干燥时可作席卷状,有1条明显的中脉(midrib)和若干条与之平行的纵长次脉(sècondary veins),
-
parallel venation：平行脉
平行脉(parallel venation) 主要是单子叶植物所特有的脉序. 叶片的中脉与侧脉、细脉均平行排列或侧脉与中脉近乎垂直,而侧脉之间近于平行,都属于平行脉. 其中所有叶脉都从叶基发出,彼此平行直达叶尖,细脉也平行或近于平行生长,称为直出平行脉,
-
Bromeliaceae：凤梨科
凤梨科 (Bromeliaceae) 单子叶植物纲姜亚纲的一科,多为短茎附生草本,但有时也为陆生耐旱植物(如菠萝). 叶互生,在短茎上形成叶丛,或有时散生于稍长茎上,狭而具平行脉,时具刺齿. 花两性或有时单性,形成简单或复合的穗状,总状或头状花序,
-
Cyclanthaceae：巴拿马草科
本科的一些较小的植物,可能与巴拿马草科(Cyclanthaceae)来自一个共同的祖先. 1.菖蒲属(Acorus) 多年生沼泽草本,具匍匐根状茎,有香气. 叶狭长剑形,2 列,平行脉,基部互抱. 肉穗花序圆柱形,佛焰苞叶状而不包着2.半夏属(Pinellia) 多年生草本,
-
parallelinervate：有平行脉的
平行脉 parallel venation; striate venation | 有平行脉的 parallelinervate | 平行现象 parallelism
-
parallelodrome：平行脉叶
parallelepiped 平行六面体 | parallelodrome 平行脉叶 | parallelodromous 平行脉的
-
parallelodrome：平行脉的
亚种渐变群的平行性 parallelism of scbspecific cline | 平行脉的 parallelodrome | 直向地性 parallelogeotropism
-
parallelodromous：平行脉的
parallelodrome 平行脉叶 | parallelodromous 平行脉的 | parallelogram 平行四边形
-
Syrphidae：食蚜蝇科
双翅目(Diptera)食蚜蝇科(Syrphidae)昆虫,约4,000种. 常在花中悬飞. 有黄色斑纹,形似黄蜂或蜜蜂,但不螫人. 与其他蝇的区别在於翅上有与第4纵脉平行的一条假脉. 食蚜蝇本身无螫刺或叮咬能力,但常有各种拟态,在体型、色泽上常摹仿黄蜂或蜜蜂,
-
ene：东北东
侵入二长岩的石英长石斑岩岩脉,其走向为东北东(ENE),与石英二长岩岩株的伸展方向平行. 这些岩脉虽已矿化,但原生铜的含量很低,铜品位为0.1-0.2%. 火成角砾岩岩系沿二长岩和岩脉复合体的轴线方向侵位.