1·The alpha helix is found in muscle protein and keratin.
α螺旋存在于肌肉蛋白和角蛋白中。
2·The hydrogen bonds which stabilize the collagen helix must also be broken.
稳定胶原螺旋的氢键也必须要被破坏。
3·RNA molecules form double stranded helices, just as do DNA molecules, by Watson Crick pairing of nucleotides on the two complementary strands of the helix.
RNA分子能像DNA分子那样形成双链螺旋，通过沃森·克里克配对，两个螺旋的核苷链互补。
4·The Golden Sun disc discs will emit a 12-strand helix, in a spiraling energy that will serve, as the prototype of the DNA for the crystalline aspect through the 144-grid.
黄金太阳圆碟将在一种漩涡能量中放射出12股螺旋，作为连贯144水晶栅格的水晶形dna的原型。
5·These discs are being activated into twelve helix spirals.
这些圆盘正被激活形成12个螺旋漩涡。
1·The resulting machining marks are, therefore, a helix having a very small pitch, which is equal to the feed. Consequently, the machined surface is always cylindrical.
所以，由此产生的机加工痕迹是一条具有很小节距的螺旋线，该节距等于进给。因此机加工表面始终是圆柱形的。
2·This paper describes the measuring principle, construction and results of the helix standard system for testing gears.
本文介绍齿轮螺旋线标准装置的测量原理、结构及结果。
3·Because pitch deviation measuring technology is very mature, the main research objective of this thesis is laid on the checkout of profile deviation and helix deviation.
因齿距偏差测量技术已经很成熟，所以本论文的在位测量主要定位于检测齿廓偏差和螺旋线偏差。
4·In other words such a molecule is pictured much as if it were a conducting helix.
换句话说，这样一个分子的图象很像一条导电的螺旋线。
5·A helix equation of time-varying pitch is established, revolving elliptic cylinder as equal angular velocity and rising as variable velocity at the same time.
建立了绕椭圆柱面以等角速度旋转，又以变速度上升的非定常螺距的螺旋线方程。