螺旋形成

基本解释 (translations)

spiralization

与螺旋形成相关的网络例句 [注：此内容来源于网络，仅供参考]

The formation of tooth face is analyzed based on the theory of original curve and area as well as the logarithmic spiral polar coordinates equation.

提出了一种新型锥齿轮-对数螺旋线齿锥齿轮传动形式，并以基曲线和基曲面滚动原理为基础，结合对数螺旋线极坐标方程，分析了对数螺旋线以及对数螺旋线齿锥齿轮齿面的形成过程，建立其了齿面方程。

We found that during the growth process the double steps first grow separately and the connected by short bridge before tangential growth. After eighth or ninth layer the spiral steps would merge into intact elliptic layers. At the merging point right-handed spiral sources might appear but the left ones always overgrow it which made the whole growth topography looked like left-handed apparently. It indicated that the EAFP molecules has strong ability to adjust itself to adapt the environment. 5. Through various analysis of interactions in the EAFP crystals it indicated that there were 218 residue interactions between 12 symmetry-related EAFP molecules around one EAFP molecule, 18 strong ones and 72 weak ones .

EAFP在低过饱和度下的螺旋生长过程中会出现台阶的合并，从而表现出单-双的螺旋台阶，在小范围扫描中捕获到了这种现象，使得对螺旋生长台阶的合并过程有了更加深入的认识；并且台阶的生长受到沿晶体学b轴方向上的21螺旋对称的控制；当台阶生长至第八到第九层时，螺旋台阶会自动地形成完整的生长层，这充分说明了EAFP分子或分子簇具有良好的自身调节能力，这样在晶体生长过程中，晶体的缺陷减少，晶体质量提高，这也可说明EAFP晶体的x射线衍射能力很强的原因。

The growth and nucleation rates of〓 cleavage face of YbYAB crystal are all very fast, because so many growth steps and growth centers were formed within only 2～3 second at the temperature near the saturate point. No spiral growth steps can be found, so growth mechanism is twodimensional nucleation. When the flux temperature increases for only 0.5℃ above the saturate point, the spiral melting holes are formed. The transformation from growth morphologies to melting morphologies is very sensitive to the temperature. When the temperature increases another 1℃, the spiral melting holes transform into two-dimensional nucleation melting holes.

YbYAB的〓解理面的生长及成核速度都非常快，在比饱和点低0.5～1℃的温度下，当生长2～3秒钟时，可以看到许多生长中心与生长台阶的形成，在较宽的台阶上还可以看到二维核的形成，没有看到螺旋中心，说明生长机理是二维成核生长；当温度比饱和点高0.5℃时，在〓解理面上形成螺旋状熔坑，这表明形貌由生长到熔化的转变与温度的关系是非常敏感的；当温度比饱和点高1.5℃时，螺旋状熔坑转变为二维成核状熔坑。

The mathematical model of ruled helicoids on torus is constructed and two expression methods of ruled helicoids are discussed.

基于圆柱螺旋面和圆环螺旋线的形成原理，构建了圆环直纹螺旋面的数学模型，讨论了圆环直纹螺旋面的两种表示方法。

Objective To explore the inhibitory effect of triplex forming oligodeoxynucleotides on replication of HBV and synthesis of antigen.

目的 探讨三螺旋形成寡核苷酸抗乙型肝炎病毒作用。

Long stretches of the continuous DNA molecule wind around these clusters of proteins, or histones, forming beadlike complexes known

这些螺旋和超螺旋形成致密的染色体组结构。每个长链DNA与组蛋白和非组蛋白一起构成染色质物质。

In Polymer, helix is a quite universal configuration Recent experiments show thatsome polymers such as bacterial flagellar filaments can form bistable helices in ionsolutions, which means that left handed helix and right handed helix can coexist in thesame environment The mechanism of this phenomenon has not been explainedsatisfactorily.

在高分子中，螺旋是一种很普遍的高分子组态。近来实验发现，一些高分子，如细菌鞭毛丝，在离子溶液中能够形成双稳态螺旋，即左螺旋与右螺旋在相同的条件下能够同时存在。

The formation mechanism of the hollow and helical fibers was proposed. During the heat treatment, the hollow fibers could be formed when the inner gel of the thinner precursor fibers was separated from the center and contracted to surface. However, the helical fibers could be generated when larger gel fibers were broken helically under thermal stress in the process of gel decomposing and contracting.

分析了中空纤维和螺旋纤维的形成机理，直径较小的前驱体纤维在热处理过程中内部凝胶向表层迁移收缩形成中空纤维；螺旋纤维是由直径较大的前驱体纤维在热处理过程中产生的强大的热应力导致纤维产生螺旋破裂形成的。

The steps include selecting a mould, injecting low temperature hot melt materials, drying the low temperature hot melt material mould, taking out the low temperature hot melt material mould, coating with slurry and sand spraying, drying the sand mould, heating for allowing the low temperature hot melt materials to demould, casting and forming, destroying the sand mould, cutting and processing to obtain the finished product.

取一成型模具：该成型模具包括两个对合的半模，于成型模具内设有一螺旋转子的成型模穴及浇铸道；灌注低温热熔材：于浇铸道灌入熔融的液态低温热熔材，液态低温热熔材即填充于对合的两螺旋转子心轴模穴、及两转子螺旋部半模穴；干燥：液态低温热熔材干燥凝固，形成一具有螺旋转子外型的低温热熔材

The central 5, 5'-disubstituted bipyridine units of each ligand coordinate theNi or Fe ion, while all the terminal 6-monosubstituted bipyridine units of the ligands keep free of coordination, as the result trinuclear triple-stranded helicate 〓 can not form. This is considered to be caused by the steric hindrance of the methylene substituents α to the chelating nitrogens of the terminal bipyridine units and the strain caused by linkage mode.

配体L〓与Ag作用得到〓，两个配体链相互缠绕着两个Ag离子周围形成双股螺旋结构并以头尾式排列(见图3)，由于配体中位于配位N原子α或β位的末端甲基或次甲基取代基的空间位阻阻碍了头对头式异构体的形成，也正是由于配体头尾式排列而使Ag双股螺旋得以形成，这一结果表明该螺旋体的组装过程中自发地采取了空间阻碍尽可能小的那个构型。

与螺旋形成相关的网络解释 [注：此内容来源于网络，仅供参考]

collagen helix：胶原螺旋[胶原中由平行的三股左手螺旋所形成的右手超螺旋结构]

collagen fibril 胶原原纤维 | collagen helix 胶原螺旋[胶原中由平行的三股左手螺旋所形成的右手超螺旋结构] | collagenase 胶原酶

spiral ganglion：螺旋神经节

1.Corti器的神经分布 蜗神经之神经元胞体位于蜗轴的Rosenthal小管内,形成螺旋神经节(spiral ganglion)(彩图12),在人类,螺旋神经节细胞约有35000个. 根据其形态可将螺旋神经节细胞分为两型. I型神经元占神经节细胞总数的90%~95%,为双极神经元,

Helical symmetry：螺旋对称

根据壳微粒的排列方式将病毒构形区分为:①立体对称(Cubic symmetry),形成20个等边三角形的面,12个顶和30条棱,具有五、三、二重轴旋转对称性,如腺病毒、脊髓灰质炎病毒等;②螺旋对称(Helical symmetry),壳微粒沿螺旋形盘红色的核酸呈规则地重复排列,

leucine zipper：亮氨酸拉链[亮氨酸出现周期性重复的一种DNA结合域,可形成卷曲螺旋结构]

lettuce necrotic yellows virus 莴苣坏死黄化病毒 | leucine zipper 亮氨酸拉链[亮氨酸出现周期性重复的一种DNA 结合域,可形成卷曲螺旋结构] | leucoagglutinin 白细胞凝集素

leucine zipper：亮氨酸拉链[亮氨酸出现周期性重复的一种DNA 结合域,可形成卷曲螺旋结

lettuce necrotic yellows virus 莴苣坏死黄化病毒 | leucine zipper 亮氨酸拉链[亮氨酸出现周期性重复的一种DNA 结合域,可形成卷曲螺旋结 | leucoagglutinin 白细胞凝集素

spiral limbus：螺旋缘

骨螺旋板是蜗轴骨组织向外侧延伸而成,其起始部骨膜增厚并突入膜蜗管形成螺旋缘(spiral limbus). 膜螺旋板又称基底膜,内侧与骨螺旋板相连,外侧与螺旋韧带相连. 膜蜗管底壁的上皮增厚形成螺旋器,为听觉感受器.

spiral phyllotaxis：螺旋叶序

其中互生叶的叶序若仔细观察,便会发现依照生出次序依次连接各叶之著生点,在茎枝上将形成螺旋线,故称螺旋叶序(spiral phyllotaxis),本文以下所提到的叶序均指此类.

spiral galaxy：螺旋星系

'''螺旋星系'''(Spiral Galaxy)是由大量气体、尘埃和又热又亮的[[恒星]]所形成,有旋臂结构的扁平状[[星系]],有下列结构特征:'''螺旋星系'''(Spiral Galaxy)是由大量气体、尘埃和又热又亮的[[恒星]]所形成,有旋臂结构的扁平状[[星系]],

telophase：末期

末期 末期(telophase) 染色体着丝粒断裂后,染色单体分别移到纺锤体的两极并重新形成核膜的时期. 该期的主要特点是:染色体解螺旋形成细丝, 核膜小泡重新包围两组染色体,相互融合, 形成完整的核膜和新的细胞核. 相关条目

double helical gear：双螺旋齿轮

(6)双螺旋齿轮(Double helical gear):左右旋齿筋所形成之螺旋齿轮. 2.直交轴之齿轮(圆锥齿轮)(1)直齿伞形齿轮(Straight bevel gear):齿筋与节圆锥之母线(直线)一致之伞形齿轮. (2)弯齿伞形齿轮(Spiral bevel gear):齿筋为具有螺旋角之弯曲线的伞形齿轮.