helix structure

Analysis of FT-IR showed that gelatin contained no helix structure.

红外光谱显示,该法提取的明胶不存在螺旋结构.

DNA double helix structure

脱氧核糖核酸双螺旋结构

IR spectrum showed that the PSC kept a great amount of triple helix structure.

红外光谱显示PSC保留了大量的三股螺旋结构；

This article discusses the algorithm for the three-dimensional set point through the use of helix structure.

论述了运用螺旋结构构造三维点集的算法.

Revelation from the Discovery of Double Helix Structure of DNA

DNA双螺旋结构发现的启示

One possibility is RNA. This is like DNA, but rather simpler, and without the helix structure.

有可能是RNA( 核糖核酸). RNA很像DNA, 但是RNA要简单些, 它不具有双螺旋结构.

Both of them have one transmembrane helix structure. The first 20 amino acid residues at C-end is hydrophobic transmembrane helix.

两者都有一个跨膜螺旋结构N末端20个氨基酸具有信号肽的特征，C末端25个氨基酸具有明显的亲脂性，并且具有跨膜特征。

from base sequence to helix structure ── the empirical prediction of b-dna local helical twist

从减基序列到螺旋结&B-DNA螺旋扭角的经验预测模型

The first three positions were filled by medical inventions or discoveries, the X-ray machine being followed by the discoveries of penicillin and the DNA double helix structure.

排在榜单三甲位置的发明都是医学领域的重大发明或发现。紧随X光机之后的是盘尼西林（青霉素）的发明，以及DNA双螺旋结构的发现。