角形
- 与 角形 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Leaves long petiolate; leaf blade ovate to suborbicular, angled, weakly lobed, or deeply palmatipartite, margin crenate or dentate, apex acute to obtuse.
叶具长叶柄;叶片卵形到近圆形,具角,弱浅裂,或掌状深裂,边缘具圆齿或具牙齿,先端锐尖到钝。
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Peltate is a seventy cents of one symbol British Commonwealth of Nations country star superjacent.
盾形上方为一枚象征英联邦国家的七角星。
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The gold deposit types are com plicated,can be divided into five types;hydrothermal breccia gold deposit,similar beded disseminated gold deposit in limestone,old karst cave gold deposit,porphyry gold deposit and skarn gold deposit.The form of these gold deposits are related to Tongshi subvoleanie complex.
该区金矿形戚与铜石次火山杂岩体有关,区内金矿类型复杂,可划分为隐爆角砾岩带型金矿、似层状畏染状灰岩中金矿、古溶洞型金矿、斑岩型金矿、矽卡岩型金矿等5种矿化类型。
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Through calculation, the analytical results agree well with the experimental results. Meanwhile, based on the proposed model, the influence on the ironing force has been analysed of main technological parameters such as the ironing rate, semicone angle, the ratio of inside radius to outside radius, the lenghth of the working land of the...
通过优化计算,变薄拉深力理论值与实验值吻合良好;用该模型研究了变薄拉深系数、凹模半锥角、原始筒形件内外径比、定径带相对长度以及内外摩擦因子等主要工艺参数对变薄拉深力的影响规律。
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Style subcylindric, 4-6-angled; stigma capitate or truncate.
花柱近圆筒状,4-6角;柱头头状或截形。
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NodD binds to and bends target promoters through anchoring two tandem and individual specific DNA sites. NodD functions as a tetramer, which has a V-shaped main body. Tetrameric NodD is to change its own conformation rather than its oligomeric forms in response to small signal molecules. The specific interaction between each NodD DNA-binding domain and each specific DNA site does not alter itself in spite of naringenin induction, and the induced conformational change is transferred from protein to DNA. Only the DNA conformation incited by induced NodD is competent for RNA polymerase to form the transcriptional open complex. It cannot be excluded that NodD may have protein-to-protein contacts with RNA polymerase, and that the NodD conformational change may also directly contribute to the transcriptional open complex formation. However, the NodD conformational change itself cannot serve as the determinant of the transcriptional molecular switch.
通过研究,我们提出了初步的NodD操纵子激活模型:第一,四聚体是NodD蛋白的功能单位,它通过铆钉两个串联的相对独立的DNA靶位点结合被诱导的启动子;第二,小分子配基的结合是改变NodD四聚体的构象而不是引发不同形式的寡聚体,在我们的模型中,NodD四聚体缩小其V形主体的弯折角,进而缩短其DNA结合功能域的间距;第三,小分子信号的诱导并没有改变NodD的DNA结合域和其DNA靶位点的相互作用,NodD的构象改变由蛋白质经其双铆钉位点传递给DNA;第四,只有诱导状态的NodD激发的DNA构象才能有效地使RNA聚合酶形成转录开放复合物;第五,不排除NodD与RNA聚合酶可能有直接的相互接触位点,不排除NodD构象的改变可能直接有利于RNA聚合酶形成转录开放复合物,但是我们认为NodD构象改变本身不是充当转录激活开关的决定因素。
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Jungfraujoch is the most glaciated part of the Alps, containing Europe's largest glacier and a range of classic glacial features such as U-shaped valleys, cirques, horn peaks and moraines.
少女山冈是阿尔卑斯山冰蚀现象最显著的部分,有欧洲最大的冰川和一系列典型冰川地貌,如 U 形峡谷、冰斗、角峰及冰碛。
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Normally, want to master trigonometry to alternate the solution of the problem inscribes strategy, we are OK from 4 words hand, namely " of " horn, name, form, power.
通常,要把握三角变换新问题的解题策略,我们可以从四个字人手,即&角、名、形、幂&。①
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Of key parameters standard design. It predigests the design and improves the design veracity.(2) Base on the in-depth research of asteroida! magneto, points out the compute of lamp coil design is the key of magneto design; and points out the type and structure of permanent magnet.
2在深入研究星形磁电机的基础上,提出照明绕组设计计算是磁电机设计的关键;并提出磁电机用铁氧体永磁材料以选用径向磁定向和削角瓦形的结构为宜。
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Asymmetrical gear ; pressure angle ; stress field ; size ; weight
不对称齿形齿轮;压力角;应力场;尺寸;质量
- 推荐网络例句
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很,以良性病变为主。