查询词典 symmetry

Height "f": is the distance between point P' and point P'' measured in projection view on the plane of symmetry Y; such value is also called camber or lateral semiextension.

高度"f"在对称面Y上的投影视图上测量的点P和点P之间的距离；这个值也被称为弯曲度或横向半延伸度。

Because the optical system of optical characteristics and the nature of the launch of the optical microscope is not the true meaning of the linear shift-invariant systems, the PSF is usually perpendicular to the optical axis in the xy plane was the distribution of radial symmetry, but the direction along the z axis significant expansion.

因为光学系统的特点和发射光的性质决定了光学显微镜不是真正意义上的线性移不变系统，所以PSF通常在垂直于光轴的x-y平面上呈径向对称分布，但沿z光轴方向具有明显的扩展。

Rectangular plane, the building of mutual symmetry, the layout is compact and closed strong, with the main cottage, and some have basements, buildings.

平面呈长方形，建筑物相互对称，布局结构紧凑，封闭性强，以平房为主，有的也有地下室、楼房。

This thesis presents the analytical solution for anti-plane problem of an elliptical inhomogeneity with non-uniformly distributed eigenstains embedded in anisotropic elastic media with a single plane of symmetry.

本文求解了具有一个弹性对称面各向异性介质椭圆夹杂受非均匀特征应变作用时的反平面问题的弹性应力、应变场。

The discovery of [60]fullerene made us to learn of a completely new world ofcarbon: from plane molecule of low symmetry to ball shape molecule of highsymmetry, from simple molecule to supermolecule of fullerene clathrate and fromone-dimensional superconductivity to three-dimensional superconductivity.

的发现使我们了解到一个全新的碳的世界，从平面低对称分子到全对称的球形分子，从简单的分子到富勒烯笼内包原子的超分子，从一维超导到三维超导。

A novel method is presented for efficient local asymmetric regions detection in medical images using image registration and mathematical morphology. First, we extend self-reflexive rigid binary image registration to find the symmetry plane of a gray-scale medical image.

提出一种利用图像刚性配准算法和数字形态学调整近似对称区域、有效挖掘出图像非对称区域，并自动判断头部炎症类疾病的算法。

Three-dimensional mesoporous SBA-15 has average mesostructure of hexagonal plane group symmetry p6mm.

棒状SBA一15材料的酶固定量可高达533m留g，约为普通介孔材料的的7倍。

Main contents of the second chapter "art words methods" are introduction of art words, basic writing skills and originality design of chinese and western characters, etc. Main contents of the third chapter "basic components of plane" are spot, strokes and spaces, etc. Main contents of the fourth chapter "format and rules of plane" are symmetry and balance, repitition and group tendency, rhythm and cadence, comparision and change, consonance and unification, breakthrough and variance, etc. Main contents of the fifth chapter "basic design of space of a whole page" are gridding system, visual process of space design, word editing, graph space design, etc. Main contents of the sixth chapter "color planning" are color introduction, surface color system, color and visual psychology, color planning, etc. Main contents of the seventh chapter "plane advertisment design" are newspaper and magazine advertisment design, outdoor and POP advertisment design, etc.

第二章"美术字技法"的主要内容有美术字概说、中外文字体的基本写法、中/外文字体的创意设计等；第三章"平面构成的基本要素"的主要内容有造型基本要素如点、线、面等；第四章"平面构成的形式法则"的主要内容有对称与平衡、重复与群化、节奏与韵律、对比与变化、调和与统一、破规与变异等；第五章"基础版面设计"的主要内容有网格系统、版面设计的视觉流程、文字编排、图形的版面设计等；第六章"色彩计划"的主要内容有色彩概论、表色体系、色彩与视觉心理、色彩设计等；第七章"平面广告设计"的主要内容有报刊广告设计、户外广告设计、 POP 广告设计等。

Our machine adopts level principle. The symmetrical roller assembly is connected by horizontally placed spring rod. When the large material touches the roller assembly, to keep balance, the radial force may pass to the roller assembly which is plane of symmetry through spring rod. Under this condition, the whole device's bearing is improved about 40% than that of others; the forming resilient connection can reduce the vibration and noise, and avoid resonance.

该机采用杠杆原理，将对称的磨辊总成用水平放置的弹簧通过拉杆连接在一起，当大块物料顶摆一个磨辊总成时，其径向力可通过弹簧拉杆传给对称面的磨辊总成来平衡，此条件下，装置的整体受力点和其它产品相比提高了40%左右；而弹性联结装置则减轻了振动和噪音，避免了共振。

Using a model regarding the impeller as homogeneous rotating circular with same thickness and various density,the residual strain field and plastic deformation zone size of certain supercharger impeller were calculated at 30 000 r／min over-speeding preload by means of axial symmetry plane stress elasto-plastic analysis method,and were compared with the result of resistance strain measurement method.

将柴油机涡轮增压器叶轮简化为一个均质、等厚、变密度的旋转圆盘，按轴对称平面应力弹塑性分析方法计算了国产某型增压器叶轮在30 000 r／min超速预加载后的残余应变场和轮内塑性区尺寸；又用电阻应变测量法测得超速叶轮的实际应变。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。