螺旋形成

The research results of Retrovirus, Filovirus, Orthomyxovirus and Paramyxovirus showed that 6-helix bundle formed by heptad repeat regions of fusion proteins was the key to start membrane fusion.

对反转录病毒、纤丝病毒、正粘病毒和副粘病毒等的研究表明，其囊膜表面融合蛋白的七肽重复区HR1和HR2相互作用形成六螺旋束是引发膜融合的关键。

The N- and C-terminal heptad repeat (designated NHR and CHR, respectively) regions of gp41 extracellular domain can form a six-helix bundle by interaction, which brings both the viral and target cell membranes into proximity for fusion.

因此，任何化合物如能抑制NHR和CHR的结合，使六螺旋束结构不能形成，就能阻止病毒进入靶细胞，从而保护免疫细胞不被感染。

The interaction between the N- and C-terminal heptad repeat regions of the gp41 extracellular domain leads to the formation of a six-helix bundle (6-HB), representing the fusion-active gp41 core.

当gp120与靶细胞表面的CD4及共受体结合后，gp41胞外段N-末端重复序列与C—术端重复序列相互作用，形成六螺旋束(6—HB)，即gp41融合活性核心，从而导致病毒融合。

The HIRA family is characterized by containing seven WD repeat domains in its N-terminal half which was predicted to form aβ-propeller structure.

HIRA家族最明显的特点是，N端都有7个WD40区，推测借此形成β-螺旋结构和两个潜在的核定位信号区。

The influences of the shape of intake port and offset of valve on the characteristics of flow field and swirl ratio were analyzed.

计算表明：螺旋气道斜坡段产生的气流角动量是气流在气缸内形成旋流的主要原因。

It was demonstrated that the reason of spiramycin production increased creased by vitamins was the promotion of synthesis of precursors and the formation of lactone.

由此表明维生素的添加促进螺旋霉素发酵合成可能是因为维生素促进了过程中前体物质的合成，从而增进了内酯环的形成。

We got that,the charged particles be binded in this field,and canonly move along the magnetic line of force as spiral motion and the positive charges andnegative charges moved in opposite direction which be fromed the big molecular groups thatbe hardly absorption,by means of incrustation preventing.

讨论了轴对称非均匀磁场对带电粒子的作用，分析了"磁约束"对防垢、除垢的微观机理，指出满足磁约束理论的轴对称非均匀磁场的防垢，除垢效果好的原因，正是由于在这种磁场中，带电粒子的运动被约束在一定磁面上的某一磁感应线附近做以该磁感应线为中心的螺旋运动，且正、负离子的回旋方向相反，从而形成内部相互作用较弱的大分子簇团不易吸附在管壁上，达到防垢目的；磁化水的渗透压较大，可起到除垢效果。

One compact long pulse generator was presented, whose spiral pulse forming line consisted of an inner conductor and an outer shield composed of magnetic material.

提出了一种结构紧凑的长脉冲发生器，该发生器的螺旋型形成线包含有磁性材料构成的内导体棒和外屏蔽。

Importation of a number of ways to screw to the inside of progressive, ultimately form a matrix.

输入一个数字，以螺旋的方式向里面递加，最终形成一个方阵。

Scalariform thickening A type of secondary wall formation consisting of interlaced helical bands of thickening giving a ladderlike formation. It allows for very little further extension, and is found in tissues such as metaxylem tracheids and vessels, which do not elongate after maturation.

梯纹加厚：是植物细胞次生壁的一种形态结构，壁由加厚过程中相互交错成梯状形态的螺旋带形成，其可延伸性很小，多存在于后生木质部管胞和导管等一些成熟后便不再延伸的管状分子中。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失