查询词典 helix

The results demonstrated that the measured molecular weight of phycocyanin was 37.715Kd, and consisted of two peptides which were similar with their molecular weight and amino acid sequences.4 The comformation of phycocyaninPhycocyanin high structure was investigated, as the result of circular dichroism spectrum and Fourier transformation infared spectrum shown, the secondary structure of NSPC was mainlyα-helix structure and the content ofβ-shee or coil was very small.

根据氨基酸自动分析仪测定的氨基酸组成和精确分子质量计算出NSPC分子总共有331个氨基酸残基，分别是由40个Asp、22个Thr、18个Ser、22个Glu、1个Gly、31个Ala、27个Cys、17个Val、13个Ile、22个Leu、5个Tyr、7个Phe、7个Lys、24个His、51个Arg、14个Pro、1个Met和9个Trp组成。胰蛋白水解酶分别酶解NSPC-1和NSPC-2后，分别采用MALDI-TOF-MS分析，其肽指纹谱图显示胰蛋白酶可将NSPC-1和NSPC-2水解成大小不等的多条肽段，质量数在800以上的NSPC-2有11段，即水解的肽质量分别为899.54、1454.77、1544.9、1683.87、1803.93、1811.91、1987.92、2003.90、2536.26、2915.42和3492.72。

The effect of main screw parameters (length/ diameter ratio, helix angle, channel depth and compression ratio)of cold feed rubber extruder on extrusion temperature were investigated by orthogonal regression method on the basis of the statistical analysis of experimental results.

研究了螺杆造型（长径比，螺旋升角，螺槽深度，螺杆几何压缩比），挤出工艺和胶料种类对橡胶冷喂料挤出机挤出温度的影响，并对各实验因素及实验结果做了统计分析，得出了他们之间的定量数学模型。

This paper introduces two methods of plasma arc powder automatic surfacing on a valve: helix surfacing and concentric circle surfacing.

介绍了2种阀门等离子弧粉末自动堆焊方式：螺旋堆焊和同心圆堆焊。

The coil is a conical helix.

线圈是一个圆锥形螺旋。

The work of this article is mainly focused on the following sections: a Detailedly expatiated temperature distributing of the solid transportation section in extrusion process of the conical twin-screw extruder, helix equation and the theory about extrusion output and solutions to them etc.

本论文的研究工作主要集中在以下几个方面： 1、较为详细地阐述了锥形双螺杆挤出机挤出过程中固体输送段的温度分布方程、螺旋线方程以及挤出产量的理论求解方法等。

Coordinate transformation in the study of tape helix.

带状螺旋线研究中的坐标变换。

The method is right 34 aorta interlining patient goes scanning of layer of 64 helix CT, the biggest density is used in workstation umbriferous , much plane rebuilds and cubage emersion technology countershaft resembles undertaking three-dimensional rebuild.

方法对34例主动脉夹层患者行64层螺旋CT薄层扫描，在工作站采用最大密度投影、多平面重建及容积再现技术对轴位图像进行三维重建。

This online helix calculator by Caleb Crome should do the job of HelixCalc without the annoying bug.

这个在线螺旋结构计算器可以完成螺旋结构计算器的工作而没有任何漏洞。

At the junction of retroauricle and mastoid, level with helix crus

在耳背与浮突交界的根部，耳软脚对应处

However, Crick and Watson might not have been able to discover the DNA double helix as quickly as they had without the work of the x-ray crystallographer X Rosalind Franklin, who died before the Nobel Prize was awarded.

然而，如果没有 X 射线晶体学专家罗莎琳德·富兰克林的工作，克里克和沃森也许不会这么快就发现 DNA 的双螺旋结构。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？