查询词典 helix

It caused aggregation of purple membrane fragments at very low concentration. This effect might be attributed to its positive charges because cationic surfactant DTAB acted the same. On the other hand, melittin seemed to have behavior similar to CHAPS which has a rigid cholane ring,both had little effect on the conformation of retinal chromporphores.In consideration of the two-dimensional crystalline structure of purple membrane,melittin may form a rigid conformation such as α-helix on the surface of the membrane.

通过与三种在结构和电荷上不同的表面活性剂与紫膜的作用相比较，可以年出蜂毒作为带正电荷的分子与同样带正电的表面活性剂DTAB在引起紫膜凝聚方面表现相同；但在对紫膜可见光区的吸收光谱和圆二色谱的影响上却与具有刚性结构的CHAPS相似，表明蜂毒可在紫膜表面以一种刚性较大的构象存在，不能进入膜蛋白流水区的深层。

In order to get the 'three parameters changeable' formulaof the nonlinear spring design engineering, spring diameter, spring wirediameter and helix angle changed coinstantaneous based on spring designtheory that wildly used before is considered, the model results is showedsuccessfully in Unigraphics Solutions software by using Ugopen/APItechnology.

本文中通过考虑弹簧螺旋角的影响，在原有弹簧设计理论的基础上，通过同时改变弹簧中径、簧丝直径和螺旋角三个螺旋弹簧设计参数的方法，得到了满足刚度性能要求的&三变&螺旋弹簧的设计方法，并在三维CAD软件UGII中成功的实现了这种弹簧的三维实体数据模型的建立工作。

It was found from the structure-electrochemical studies of cytochrome c that (1) the secondary and tertiary structural changes of cytochrome c are greatly influenced by the reductions of tyrosine residues and iron ions in heme;(2) the reduction reaction dose not induce the configuration transition;(3)α helix, parallel β sheet, antiparallel β sheet and random coil take part in the complex secondary structural transitions;(4) mechanism and parameters about the electroreduction have also been obtained.

在细胞色素c的结构-电化学研究中发现：（1）细胞色素c的二级和三级结构受电场和酪氨酸残基及血红素中Fe的电化学还原的影响，其中酪氨酸残基还原的影响较大；（2）细胞色素c的电化学还原没有发生构型转化现象；（3）细胞色素c参与二级结构变化的构象有α螺旋，平行β折叠，反平行β折叠和无规卷曲；各组份随电位的变化复杂；（4）获得细胞色素c电化学还原的机理和参数

In this dissertation, the wave propagation characters in a helix type slow wave structure filled with plasma immersed in finitely strong confining magnetic field is systematically studied.

本文系统的研究了在有外加恒定有限磁场条件下填充等离子体的螺旋线慢波系统中电磁波的传播特性，主要内容如下：1。

The vertical height of transmission for each set of flectional helix conveyer will be as high as 10m and the horizontal distance will be 25m.

单台可弯曲螺旋输送机输送物料，垂直高度可达10米，水平距离可达25米。

It is suitable for transmitting all kinds of powder, granule, ball or flake material. The helix conveyer can transmit material in straight line and also flectional transmission.

该螺旋输送机可以作直线输送，也可以弯曲输送，这种高度灵活性让使用者非常方便地不止各种设备。

This technology is mostly to change the primary harvestry equipment that composed by three drive parts of dial-standing grain wheel,to-and-fro incise and agitate-dragon transportation into a helix agitate-cut equipment.It can predigest most of the structure,reduce the cost and advance the dependability.

项目简介：本技术主要是将原来收割机由拨禾轮，往复切割，搅龙输送三个传动部分组成的收割装置变为了一个螺旋搅切装置，可大大简化结构，降低成本，提高可靠性。

Water, Sodium Laureth Sulfate, Cocamidopropyl Betaine, Cocamide MEA, Disodium Cocamphodiacetate, Sodium Lauryl Sulfate, PEG 40 Hydrogenated Castor Oil, Perfume, Sodium Chloride, Propylene Glycol, Quaternium 80, Methylparaben, Polyquaternium 10, Hydroxypropyl Guar Hydroxpropyltrimonium Chloride, Citric Acid, Diazolidinyl Urea, Tetrasodium EDTA, Polyquaternium 7, Propylparaben, Sodium Hydroxide, Panthenol, Persea Gratissima Oil, Penta Sodium Pentetate, Hedera Helix Extract, Bambusa Vulgaris Extract

水，月桂醇聚醚硫酸酯钠，椰油酰胺丙基甜菜碱，椰油酰胺MEA，椰油酰两性基二乙酸二钠，月桂醇硫酸酯钠，PEG 40 氢化篦麻油，香料，氯化钠，丙二醇，季铵盐-80，苯甲酸甲脂，聚季铵盐-10，羟丙基瓜尔胶羟丙基三甲基氯化铵，柠檬酸，重氮烷基咪唑脲，乙二氨四醋酸四钠，聚季铵盐-7，对羟基苯甲酸丙酯，氢氧化钠，泛酰醇，酪梨油，喷替酸五钠，常春藤萃取物，银竹萃取物。

According to the helix theory , in almost all structures of organic compounds exist helices.

螺旋理论认为，几乎所有的有机化合物结构中都存在螺旋，螺旋结构是导致旋光性的根本原因。

Some parameters and properties of Centrin, after being purified, were predicted with GenePro, such as isoelectric point, net charge, amphipathy, hydropathy, a-helix potential, Calcium-binding site. All these attempts aim to provide some theoretical guidance for the succeeding experiential researches.

纯化后的Centrin先运用GenePro对它的一些参数及性质做了预测，诸如等电点、净电荷量、亲水亲脂性、α-螺旋分布及钙结合区氨基酸序列分布等，以期为后续实验研究起到理论性的指导作用。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷