从远处看，这些基本成分看上去极为相似，因此DNA的每一部分的基本形状都是相同的 —著名的沃森克里克双螺旋结构。
From a distance, these building blocks look very similar, so every piece of DNA you look at has the same overall shape—the famous Watson-Crick Double Helix.
最经典的例子莫过于生物学中的双螺旋结构和物理学中的基本方程。
Examples include the double helix in biology, and the fundamental equations of physics.
这里分析了在安装尺寸基本确定条件下圆柱形螺旋压缩弹簧的高精度设计与调整。
The paper analyses the high precision design and adjustment of cylindrical spiral compressed spring under condition of installation dimension being ascertained basically.
介绍了螺旋ct的基本原理，使用中的注意事项以及日常保养方法。
This article introduced the basic principles of spiral CT and its matters needing attention in using, as well as daily maintenance methods.
抽齿规律是螺旋钢球活齿传动的基本规律之一。
Theorem of choosing teeth is one of basic rules of designing screw steel ball moving teeth driver.
本文介绍了交叉螺旋槽式珩磨机的基本设计和工作原理。
The basic principle of design and. operation of a honing machine in crossing spiral grooves is introduced, in this article.
阐述了新型螺旋振动旧砂再生成套装置的基本原理和特点，介绍了成套装置的组成、生产使用情况和良好的效果。
This paper is concerned with the basic principle and features of a new-type used sand reclaiming outfit with spiral vibration.
双螺旋结构的基本要素由四个极点与四段生命链构成。
And its basic segments are four acmes and four chains of life.
螺旋浆其实只是一个令飞行员凉快的大风扇，当它停了，基本上你会看到飞行员开始冒汗了…
The ropeller is just a big fan in front of the lane used to keep the ilot cool. When it stops, you can actually watch the ilot start sweating.
结果：将卡铂耳中毒灰鼠的耳蜗标本与正常灰鼠进行比较，显示内毛细胞，神经纤维和螺旋神经节的损失百分比基本一致。
Results: Compared to normal ears, the carboplatin treated ears showed missing hair cells, nerve fibers and spiral ganglion cells, with the same percentage of loss at different levels.
分析了螺旋翼片管三辊行星轧机的工作原理，给出了传动系统设计的基本公式。
This paper analyzes the work principle of the three planet rollers mill for helical gill tube, and gives a formula as the basis of transmission system design.
结论诊断主动脉疾病综合应用螺旋ct的各种技术可基本取代X线血管造影，其为临床提供了一种可靠的诊断手段。
Conclusions Application of combined techniques of spiral CT can basically replace X-ray angiography in the diagnosis of aortic diseases. It provides another reliable modality for clinics.
根据时间分割法的思想，提出了一种螺旋线插补算法，并介绍了该方法的基本原理和推导过程。
A practical calculating algorithm for spiral-line interpolation is prompted based on the time-divided method and the principle is also deduced in detail.
介绍了立式螺旋搅拌磨矿机的基本结构和工作原理，着重叙述了该设备在铁精矿再磨再选工艺流程中的应用。
The paper describes the basic structure and working principles of vertical spiral agitating mill, and highlights its application in the regrinding and re-separation process of iron concentrate.
介绍了螺旋翅片管高频焊接工艺及其成型基本原理。
The high frequency welding procedure and its forming fundamental of spiral fin pipe is introduced.
在分析克林·贝格螺旋锥齿轮切齿原理和基本运动的基础上，以一对齿轮副参数为例进行建模。
Based on an analysis of gear cutting principle and basic motion of klingelnberg spiral bevel gear, the modeling is carried out by taking parameters of a gear pair as example.
给出螺旋面钻尖刃磨机床的基本结构及其工作原理。
Basic structure and operation principle of the parallel grinder for helical drill point grinding is presented.
应用此系统可以迅速设计开发出所需要的主减速器圆弧螺旋锥齿轮的基本参数和三维模型。
This system can be developed rapidly design required main reducer arc of spiral bevel gears of 3d model and basic parameters.
有两个基本类型的压盘是螺旋弹簧组压盘和膜片弹簧压盘。
The two primary types of pressure plate assemblies are coil spring assembly and diaphragm spring .
螺旋纽带与凝汽器换热直管道基本等长并插装在凝汽器直管道内。
The spiral bands are basically equal in length to a condenser heat-exchange straight pipe and are inserted in the condenser straight pipe.
八卦基本八掌：仰掌，俯掌，竖掌，抱掌，劈掌，撩掌，挑掌，螺旋掌。
Bagua Basic Eight Palms: Upward Palm, Downward Palm, Upright Palm, Embracing Palm, Chopping Palm, Scooping Palm, Picking Palm, and Screwing Palm.
结果表明，用此简化计算公式计算的结果与试验数据基本一致，可以用于螺旋片导流式气液分离器螺旋结构设计计算。
The results show that the values from this simplified calculation formula is consistent to the test data and it can be used to design the spiral structures.
文章详细介绍了无键螺旋桨安装的基本原理，全面分析了无键螺旋桨安装工艺的具体操作方式。
This paper presents the principle of keyless propeller fitting, and provideds in detail the technique of keyless propeller fitting operation.
文中从理论和实例两方面论证，螺旋相量满足电路的基本定律，线性电路的分析方法对于螺旋相量均适用。
From circuit theory and examples, this paper proves that the spiral vector satisfies the basic law of the electric circuit. All the linear circuit analysis methods can be used for the spiral vector.
结果表明：在直槽或螺旋槽、零前角或正前角等情况下，用本文设计的磨轮铲磨的滚刀，其基本蜗杆轴截形在从新到旧的整个使用过程中都是精确的。
The following conclusion is obtained. In the cases of straight gash, spiral gash, zero rake angle and positive rake angle, the hob worm profile from hob put into use to hob abandoned i…
实际使用证明该软件对可拆式螺旋板换热器的基本设计是有效和可靠的。
The actual service proves that this CAD software about DSHE is convenient, effective and reliable.
实际使用证明该软件对可拆式螺旋板换热器的基本设计是有效和可靠的。
The actual service proves that this CAD software about DSHE is convenient, effective and reliable.
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