近似的和真实的的黄金螺旋线。
斐波那契螺旋是黄金螺旋线的近似表达。
A Fibonacci spiral, which is a close approximation of a golden spiral.
大致近似于纸风车上的双重螺旋线。
A rough approximation would be the dual spirals in pinwheel.
这就是二重螺旋线的形状。
产品利用精密的PVC螺旋线抗冲击和碾压。
It utilizes a rigid PVC spiral helix to resist impact and crush.
而这颗行星就以螺旋线的形式游弋到现在所占据的轨道上。
尤其是对它结构(双螺旋线以外的结构)的研究。
Particularly when it comes to its structure — the stuff beyond the double helix.
则螺旋线平衡的动态稳定性由时间域的本征值判断。
Then the dynamic stability of the helical equilibrium depends on the eigenvalues in the time domain.
本文介绍齿轮螺旋线标准装置的测量原理、结构及结果。
This paper describes the measuring principle, construction and results of the helix standard system for testing gears.
这个著名的错觉被称为扭曲的螺旋线或者虚假的螺旋幻象。
This famous illusion is known as the twisted cord or false spiral illusion.
在这种表示法中，晶体应相当于许多螺旋线的平行排列。
In the present representation this crystal would correspond to a parallel array of helices.
还好，最近一项对蜗牛壳螺旋线的研究也许能给这个谜题带来一线光明。
Recent research, though, into the way a snail's shell spirals may throw new light on this puzzle.
经过磨损的不等距螺旋输送辊的螺纹是一条“等变距螺旋线”。
The thread of abraded unequal spiral shifting roller is actually a "uniform increasingly dispersing-ratio spire".
用相平面法分析螺旋线平衡的稳定性，导出解析形式的稳定性条件。
The stability of the helical equilibrium is analyzed with phase plane method, and an analytical criterion of stability is revealed.
渐渐的，出现了凌乱的折线、曲线和像蜗牛一样的螺旋线等等，多么神奇！
Gradually, the curve line, messy and like a snail Helix and so on, what magic!
状的物品某物，如螺旋线或蒸馏器的螺旋冷凝器，在构成或外表上像蠕虫。
Something, such as the thread of a screw or the spiral condenser in a still, that resembles a worm in form or appearance.
“切片”参数可以缩小基于每个螺旋和草堆中心点之间距离的螺旋线的长度。
To achieve that I used the "slice" parameter to shrink the length of the spirals based on the distances between each spiral and the central point of the haystack.
请注意，在下页的图中，随着你的视线沿螺旋线移动，矩形与线的比例透出令人愉悦的美感。
In the graphic on the following page, notice the aesthetically pleasing proportions of the rectangles and lines as your eye travels along the spiral.
动态螺旋线指的是在单位时间内，产生一种或者多种形态属性变化过程的螺旋线。
The dynamic helix refers to one or more formative propertis changing helix in a unit time.
本文介绍一种测量石油螺纹量规的螺旋线、中径、锥度和牙形半角的新方法及装置。
This paper describes a new method and device for measuring helical line, pitch diameter, taper and half-angle of thread of petroleum thread gauges.
分析比较了预绞丝螺旋线的特点和成型工艺，介绍了绞丝模具结构和型腔加工工艺。
The processes of corresponded moulds are introduced in order to analyze and compare the characteristic and the production process of mould of performed helix.
设计师ChanHwee Chong受历史上最著名的几幅杰作启发，创造了螺旋线绘画。
Designer Chan Hwee Chong creates spiral illustrations inspired by some of the most popular masterpieces in history.
本文应用运动学理论，研究了任意回转体外表面上的变倾角变导程螺旋线的通用模型。
With the theory of kinematics, the universal model of changed Angle and variable pitch spiral groove on any turning surface is researched.
考虑角向空间谐波，建立了有限厚度翼片加载螺旋线慢波结构的模型，推导出色散方程。
Considering azimuthal space harmonics, the finite size vane model is suggested for vane-loaded helical slow-wave structures in this paper.
研究结果表明，螺旋线慢波系统的结构参数对它的基波色散特性和耦合阻抗影响非常复杂。
As the research indicates, the structural parameters of the spiral curve slow-wave systems have complicated influence on its fundamental wave dispersion characteristics and coupling impedance.
介曲线是一组用来保证在直轨和弯道之间，以及不同半径的弯道之间进行平稳过渡的螺旋线。
An easement is a segment of a spiral that provides a smooth transition between tangents and curves, and curves of different radius.
通过该模型，分别建立了柱面上、球面上和锥面上球头立铣刀的等导程螺旋线的数学模型。
By using it, the model of equal lead on the cutter can be applied to the cylinder, cone and sphere.
通过该模型，分别建立了柱面上、球面上和锥面上球头立铣刀的等导程螺旋线的数学模型。
By using it, the model of equal lead on the cutter can be applied to the cylinder, cone and sphere.
应用推荐