螺旋

The last but not least, it is also owning to the rapid development in computer science and information technology. Such as, some computational task, which previously must be executed by using super-computer, now can be carried out by personal computer, and at the same time, the network speed and band width of data bus and input/output equipment have increased several times. In addition, the improvement of the high quality graphic displaying is available. All these provide strong support for cryoEM high-resolution reconstruction study.

目前，在低电子剂量的情况下，冷冻电镜照片可以记录到3-4 〓的信息，使用冷冻电子显微镜进行高分辨三维重构工作，已经获得6.5-8〓高分辨率水平的结果，可以分辨出蛋白质的α螺旋、识别出蛋白质的β折叠等蛋白质二级结构；其次是，三维重构算法效能的不断提高，使得对二十面体取向和中心参数计算的可靠性大大提高；再次是，由于计算机和信息技术迅猛发展，例如，以往需要使用大型计算机的计算任务已经可以被一般的个人电脑完成，网络速度、数据总线和硬盘等I／O设备的带宽成倍增长，以及图像显示能力的提高都为冷冻电子显微镜高分辨三维重构技术提供了强有力的支持。

Nowadays, in the low electron dose condition, the information about 3-4〓 can be recorded on the cryoEM micrograph, and the high-resolution reconstruction using the cryoEM has reached 6. 5-8〓 levels. The reconstruction can reveal the protein α helical and recognise β fold secondary structure. Secondly, it is due to the development in 3D reconstruction method, which can be more efficient to determine the orientation and center parameters. The last but not least, it is also owning to the rapid development in computer science and information technology. Such as, some computational task, which previously must be executed by using super-computer, now can be carried out by personal computer, and at the same time, the network speed and band width of data bus and input/output equipment have increased several times. In addition, the improvement of the high quality graphic displaying is available. All these provide strong support for cryoEM high-resolution reconstruction study.

目前，在低电子剂量的情况下，冷冻电镜照片可以记录到3-4 〓的信息，使用冷冻电子显微镜进行高分辨三维重构工作，已经获得6.5-8〓高分辨率水平的结果，可以分辨出蛋白质的α螺旋、识别出蛋白质的β折叠等蛋白质二级结构；其次是，三维重构算法效能的不断提高，使得对二十面体取向和中心参数计算的可靠性大大提高；再次是，由于计算机和信息技术迅猛发展，例如，以往需要使用大型计算机的计算任务已经可以被一般的个人电脑完成，网络速度、数据总线和硬盘等I／O设备的带宽成倍增长，以及图像显示能力的提高都为冷冻电子显微镜高分辨三维重构技术提供了强有力的支持。

He and Princess began spiraling towards their target, allowing their speed decrease to a safe, landing velocity.

他和公主向他们的目标开始成螺旋状下降，让他们的速度减少到一个保险箱，登陆速度。

Leaves spiral, sometimes decussate, margin often toothed.

叶螺旋状排列，有时交叉，边缘通常具齿。

Leaves decussate, subopposite, or spirally arranged; blade scalelike, subulate, or linear to elliptic, stomatal lines abaxial or present on all surfaces.

叶交互对生，近对生，或者螺旋状排列；叶片鳞片状，钻形，或者线形至椭圆形，背面有气孔线或两面均有气孔线。

The strands of the plot are darkly and deftly intertwined like the DNA helix of the killer....

股黑暗的剧情和巧妙的交织在一起的DNA螺旋一样的杀手

The influence of atmosphere on the thermal degradation behavior and thermal degradation activation energy of untanned collagen fibers are discussed.

皮革收缩行为的实质是在热的作用下，氢键作用被削弱，三股螺旋结构发生破坏，肽链分子发生横向摇摆所致。

Denaturation A process that causes unfolding of the peptide chain of proteins or of the double helix of DNA.

变性：可以使蛋白质的多肽链或 DNA 的双螺旋解开的一个过程。

When high temperature is used to denature DNA, the DNA is said to be melted.

DNA 变性后，生物活性丧失，但一级结构没有改变，所以在一定条件下仍可恢复双螺旋结构。

Collagen, which is composed of three spiral lines, is the key to decide the dense and saturation of skin. 70% of young facial derma is made of collagen that is important for improving wrinkles and making skin supple.

胶原蛋白决定肌肤的紧致与饱满程度，对於改善皱纹来说有重要的影响，年轻的脸部真皮层中有70%是胶原蛋白﹔以三条索呈螺旋状缠绕而成的胶原蛋白，是使肌肤有弹性不松垮的重要支柱。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。