叉状的
- 与 叉状的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This article focuses on the line-line, line-region and region-region topological relations algorithm, which come down to the same question: whether there are intersections between line and line. The sweep-line algorithm was studied by many people, but has some deficiencies to be improved, in order to handle some special cases and increase program efficiency. My works as follows: rectangular envelope to reduce executive times , vector cross multiplication to determine intersection between line and line, coordinates and slope method to deal with some special cases. C program examples are showed together.(5) Finally, to prove capability and efficiency of the model and calculation method, some test systems are developed. For example, complex spatial topological relation query, parcels' exact area with the area of linear object reduced in land use, quality inspection to cadastral data according to topological rule, spatio-temporal change query of cadastral data.
将线线、线面、面面之间的拓扑关系实现的算法归结为线与线之间求交的基本问题;为处理一些特殊的拓扑关系情况,提高扫描线算法的效率,探讨了包络矩形粗滤、判断线线是否相交的矢量叉乘法、线节点重合或共线的斜率坐标判断法等改进方法;同时还设计了一种新的节点微小圆求交的算法,可应用于图斑与线状地物细分拓扑关系及地类面积的计算;(5)本文设计了实验系统,包括复杂对象的拓扑关系表达与计算程序、图斑地类面积的计算程序、基于空间拓扑关系规则的地籍数据库质量检查功能,以及时空拓扑关系和变化语义分析等原型,验证了拓扑关系表达模型和计算方法的可行性和实用性。
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Recent researches have shown that FOXP3(forkhead transcription facter3),which is a critical transcription factor in regulatory T cells development,plays a very important role in regulatory T cel...
最近研究发现,叉头状转录因子3(FOXP3)对于调节性T细胞的发育和功能具有重要作用,是调节性T细胞发育的一个关键转录因子。
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Recent researches have shown that FOXP3(forkhead transcription facter3),which is a critical transcription factor in regulatory T cells development,plays a very important role in regulatory T cells development,This article gives an overview about molecule structure function,the relation of CD+4CD+25 Treg cells in development and function,and the meaning of clinical measure.
最近研究发现,叉头状转录因子3(FOXP3)对于调节性T细胞的发育和功能具有重要作用,是调节性T细胞发育的一个关键转录因子。文章就FOXP3的分子结构功能、与CD+4CD+25Treg细胞在发育和功能上的关系及临床检测的意义予以综述。
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Objective To establish a method for detection of CD4(superscript +) CD25(superscript +) forkhead box p3 (Foxp3)(superscript +) nature regulatory T cells in peripheral blood by flow cytometry and evaluate its significance in patients with systemic lupus erythematosus.
目的 探讨流式细胞术检测CD4 CD25叉头状转录因子(Foxp3)天然调节性T细胞的方法及其在系统性红斑狼疮患者外周血中改变的意义。
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FOXP3(the forkhead/winged-helix transcriptional regulators P3) is expressed specifically in regulatory T cells, and exerts great influence on the development and function of Treg cells.
国外多个研究小组已证明FOXP3(称叉头状/翼状螺旋转录因子)在Treg细胞上特异性表达,且对Treg细胞的发育和功能是必需的。
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Its flat tail fin to be divided into two forks, on both sides of the pectoral fin was like the palm of your hand flat, triangular dorsal fin.
它的尾鳍扁平地分为两叉,两边的胸鳍呈扁平的手掌状,背鳍呈三角形。
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Branches with white woolly tomentum, erect hairs absent; tendrils bifurcate.
分枝具白色的具绵状毛的绒毛层,直立毛无;卷须二叉 28 V。
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Fruit lanceolate, terminal segment strongly compressed, ensiform; fruiting pedicels divaricate; fruit valves hispid with subsetose trichomes mixed with much shorter, more slender ones
结果实披针形,顶生分裂强烈压扁,;果梗极叉开;果裂爿具糙硬毛的具subsetose毛状体与非常短,更纤细的混合 1 S。
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Stems unarmed, sometimes with conspicuous lenticels, or bark sometimes shredding; branches often swollen at 3-7-lacunar nodes; pith continuous or interrupted by diaphragms at nodes; tendrils simple, bifurcate to trifurcate, or 4-12-branched, usually leaf-opposed, rarely tendrils absent.
茎无刺,有时有明显的皮孔,或者树皮有时碎片状(在大多数葡萄属的种里;分枝通常在3-7节腔隙膨胀;髓连续或在节上被膈膜间断;卷须单,二叉对三叉,或者4-12分枝(在Parthenocissus),通常对生,很少无卷须。
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The shielded rectangular cross section slab line with cylindrical inner conductors is of great importance to microwave engineering and design.
在具有圆柱内导体的叉指滤波器和梳状滤波器工程设计中,对屏蔽矩形板线特性阻抗的计算至关重要,只有通过计算,才能确定滤波器中各导体的自电容和耦合电容值。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。