查询词典 helix

This paper focuses on the optimal pitch arrangement in double-side heating once-through steam generator with helix tube inside.

本文主要研究了带内螺旋缠绕管的管套管双面加热直流蒸汽发生器元件中沸腾段内螺旋管螺距设置的优化问题。

The thickness of eyelid, vermilion of the lip, nasal ala, helix of ear, submaxilla, temporalis anterior are less than 2mm, the thickness of apex of nose, upper lip, nasal dorsum, eyebrow are more than 3 mm, and other sites range from 2 to 3mm.conclusion the thickness of skin and epidermis is different in different sites in faces, the proportion of epidermis and skin is relatively stable and there is some character in the thickness distribution area.

除口唇、鼻、眼眉、耳轮、下颌等部位外，面部大部分皮肤厚度为2.00～3.00mm。结论：本组所测青壮年面部不同部位的皮肤和表皮厚度不同，表皮占皮肤的比例相对稳定，皮肤厚度的区域分布具有一定特点，据此可以指导面部的磨削术等外科手术。

Firstly, the developing principles of the cylindrical internal helical gear are proposed through analyzing the movement and geometry requirements, which provides continuous contact between the mating gear surfaces. The tooth surface of the internal helical gear in the new gearing can be imagined as being generated by the normal section of the conjugated surface of the ball-tooth, moving along the radial projection of helix line of the tooth-root circle. Also, the proposed surface can be approximate tangent to the conjugated surface of the ball-tooth along a spacial curve.

首先，通过分析保证行星轮作螺环运动时与内斜齿轮实现连续啮合传动的运动和几何条件，提出了圆柱内斜齿轮齿面的两种形成原理：即由球齿运动包络曲面的法截面沿其齿根圆螺旋线在径向的投影进行拓展所形成的内齿面，以及与球齿运动包络曲面呈近似相切接触的等螺距齿面构成的内齿面。

It has been devoting itself into the recreation study and development of leather machine in recent years and is producing computer-controlled spray machine, stainless soften tambour,eight-angle soften tambour,pancake helix vacuum drier,surface-pull drier,polishing machine etc.more than ten kinds of products with many size.

北江皮革机械有限公司是由制革公司和北江皮革机械服务部为前身，积累了数10年制革机械的使用经验和标准，多年以来致力于皮革机械的创新研究与开发，目前以生产电脑控制喷浆机，不锈钢摔软转鼓，八角型摔软转鼓，水平螺旋转鼓、多板真空干燥机、抛光机辊印涂饰机、棚平干燥机等数十种产品，近几十种规格。

Collagen is the most abundant protein in higher vertebrates, accounting for one-third of the total body protein, collagen resists stretching, is the major component of tendo , and contai one-third glycine and one-fourth proline or hydroxyprolinethe rigid r grou , and the lack of hydrogen bonding by peptide linkages involving proline and hydroxyproline, prevents formation of an ∝-helical structure and forces the collagen polypeptide chain into an odd kinked-type helix.

胶原螺旋是高等脊椎动物中最丰富的一种蛋白质，占动物体蛋白总量的1/3。胶原蛋白中含有1\3的甘氨酸和1\4脯氨酸或羟脯氨酸，能抵抗拉伸，是腱的主要组分。

The three-ply helix structure with collagen peculiar albumen makes its are hard to absorb by human body, after be collagen albumen hydrolyze collagen polypeptide, can improve its nutrition and physiology function significantly.

梗概： 胶原蛋白特有的三股螺旋结构使其难于被人体吸收，将胶原蛋白水解为胶原多肽后，可显著提高其营养及生理功能。

Add to that a set of Flex-Core Limbs, Double Helix Strings, Speed Bearings in the eccentrics, and a sleek magnesium riser that allows the Saber to tip the scales at a lean 3.5 lbs., and you end up with a predator that practically eats the competition alive.

再加上一设置Flex的核心四肢，双螺旋弦乐，速度在怪人轴承，和圆润镁喉，允许军刀给小费在一个精简的3.5磅的尺度。，你最终的捕食，几乎吃了竞争活力。

Under the helix boundary condition, the Helmhotz matrix has Toeplitz structure with positive definite property.

在螺旋边界条件下，该矩阵H具有Toeplitz结构的正定厄密矩阵，其快速求逆可由谱法LU分解或直解法快速实现。

The results suggested that apoE C-terminal domain form a trimer in aqueous solution with high helix content.

从所得到的结果推测，此片段在此环境下时，四级结构可能为trimer。

The results demonstrate that ACM-A is capable of intercalating between the base pairs of DNA double helix, the π-π electronic overlapping between π-electron of ACM-A and DNA stabilizes the ACM-DNA adduct, and through electrostatic interaction, the trisaccharide interacts with the minor groove of DNA owing to C(3') amino group.

实验结果表明，ACM-A主要以其蒽环平面嵌入DNA双螺旋碱基对之间，发生-等电子间相互共轭，同时药物糖基上C3'位的-N(CH3)2基团带正电荷，易与带负电荷的磷酸骨架产生静电吸引，从而发生沟槽作用，嵌入DNA的小沟区，这是二者之间的主要结合模式。并且，DNA与ACM-A药物原型的亲和力要强于还原后的药物代谢产物。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。