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。
Distribution of luminous intensity having an axis of symmetry or at least one plane of symmetry.
对光源而言，至少有一轴对称或面对称的光强分布。
Symmetry of plane curve is important to function research.
平面曲线的对称性对于函数研究具有重要意义。
Center symmetry plane three connecting rod is studied.
研究中心对称平面三连杆的运动。
A half of a symmetrical, approximately spherical object as divided by a plane of symmetry.
半球体：一个对称的、近似球体的物体的一半，如被对称面分开者
Porous media, as well as the axial symmetry plane seepage flow calculation.
详细说明：孔隙介质中的轴对称渗流以及平面渗流计算方法。
If the parting line cannot be on a single plane, then it is good practice to use symmetry of the design to minimize the side thrust forces.
如果分模面不能在单一平面，利用设计的对称性来减小侧向推力不失为一种好方法。
The potential has a reflection symmetry about an equatorial plane and the motion, which restricts to the equatorial plane, is integral.
在牛顿极限下，引力场的势函数关于赤道平面是对称的，而且在赤道平面上试验粒子的运动是可积的。
At 30° and 20° incidences, there are three separation lines on each side beside the symmetry plane when the flow is laminar and Re=1.4×10〓. In turbulent flow, two separation lines with positions shifted downstream were observed in experiments under the same conditions.
只看流动对称面一侧，在层流状态，Re=1.4×10〓，迎角为30°和20°时都有三条分离线；而湍流状态同样实验条件下只观察到两条，并且分离线的位置推向下游，二次分离线长度也大大缩短。
Plane biaxial strain breaks the cubic symmetry of semiconductormaterial and splits the light-and heave-hole state at Γ point, so, improves the photo-electronical devices performances.
平面双轴应变改变了半导体材料的对称性，使重、轻空穴能带分裂，克服原来认为半导体材料中的本征缺陷，改善了半导体光电器件的性能。
In order to satisfy the guidance task of Suborbital Launch Vehicle, based on the SLV s plane symmetry lifting body figuration, the SLV selects the straight slope formal attack angle, mending the guidance of Launch Vehicle.
为了更好地满足亚轨道飞行器的制导任务需求，基于亚轨道飞行器面对称的升力体外形，采用直线斜率形式的迎角变化规律，改进了现有的运载火箭制导方法。
On the hexagonal prism face {1010}, Dauphine twinning showed two-fold symmetry between the trapezoidal etching pits of individuals, while Brazil twinning showed symmetry plane between the trapezoidal etching pits of individuals.
在六方柱{1010}面存在道芬双晶处，直角梯形蚀坑的方位关系为二次轴关系；六方柱{1010}面上存在巴西双晶处，直角梯形蚀坑的方位关系为对称面关系。
On the rhombohedron face {1011}, Dauphine twinning showed different shapes of etching pits between individuals, because rhombohedron positive form {1011} and negative form {0111} appeared on both sides of twin partition line, while Brazil twinning showed symmetry plane between the irregular triangle etching pits of individuals. On the trigonal prism section 11(average20, Dauphine twinning showed different shapes of etching pits between individuals, because trigonal prism positive form {1120} and negative form {2110} appeared on both sides of twin partition line, while Brazil twinning should show symmetry plane between the ellipse or quadrilateral etching pits of individuals, which was not observed.
菱面体{1010}面上存在道芬双晶处，道芬双晶双晶缝合线两端分别是菱面体正形、菱面体负形出露处，导致蚀坑形状不同；菱面体{1011}面上存在巴西双晶处，不规则三角形蚀坑形态的方位关系为对称面关系；三方柱切面{1120}面上存在道芬双晶处，道芬双晶双晶缝合线两端分别是三方柱正形、三方柱负形出露处，导致蚀坑形状不同；三方柱切面{1120}面上存在巴西双晶处，椭圆形或四边形蚀坑方位应为对称面关系，但实验中未见到。
For giving an explaintion of strong transmogrification but feebleness metamorphism of and their corresponding relation of the Triassic stratum in Songpan-Ganzi area and opening out the temperature and stress condition, this paper summarized study production of predecessors, and put forward 5 conclusions about Songpan-Ganzi area Triassic main lithology(slate, sandrock, and blastopsammitic) through field geological investigation, actual measurement section plane study and combining indoor slice identification, electron probing and fluid enclosure testing analysis:1.Field outcrop strongly transmogrification, and often developed same cleavages(S1) erection or approximately erection `B`fold and symmetry similituded fold. 2.The metamorphosed mineral combination is simple, and the typical metamorphosed mineral combination is Al+Chl+Ser+Cc+Q, etc. The metamorphosed mineral develops mainly along the cleavages of the territorial cleavages faces(S1), bearing territorial dynamic metamorphism character and belonging to the lawsonite-albite-chlorite face of slightly metamorphism. 3.Territorial metamorphism P-T change focus on T:180～200oC, P:1～2kbar
为了对松潘-甘孜地区三叠系强变形浅变质的特征及变质与变形的对应关系作出解释，揭示变质与变形的温-压条件，本论文总结前人研究成果，通过野外地质调查和实测剖面研究，结合室内薄片鉴定、电子探针和流体包裹体测试分析，对松潘-甘孜地区三叠系主体岩性(板岩、砂板岩、变质砂岩及千枚岩)的变质作用得出5 个认识结论：1、整个松潘-甘孜地区经受了自北向南的强大挤压；2、变质矿物组合简单，除雏晶黑云母外，典型的变质矿物组合为Al+Chl+Ser+Cc+Q等，变质矿物主要沿区域性劈理面(S1)的劈理域发育，具有区域动力变质作用特征，属于低级变质作用中的硬柱石-钠长石-绿泥石相；3、区域变质作用P-T 变化集中在T：180～200oC，P：1～2kbar
Height datum: Symmetry plane or the bottom surface.
高度基准上下对称面或底平面(Z = 0)。
This treatise set, forth the importance of symmetry principle in physical theoretical system from the high plane of methodology and discusses the dialetical relationship among symmetry, dynamical equations and conservation laws.
从方法论的高度阐述了对称性原理在物理学理论体系中的重要性，论述了对称性、动力学方程和守恒定律之间的辩证关系。
The X-ray crystal structure reveals that thiourea coordinates with Pd via S atom, and the complex as a whole was in complete symmetry with palladium atom at the symmetry center of the plane square structure.
硫脲是有效反萃剂，从萃合物的晶体结构看出，硫脲通过S原子与Pd配位，萃合物以Pd原子为中心构成平面正方型结构。
According to the different orientations of domain walls with respect to the (100) observation plane of a foil, 90°domain boundaries may be divided into two kinds. one is thin lens or ring shaped a-a 90°domain boundary, and the domain wall lies on the {110} plane; Usually, most of these domain boundaries are uncharged; according to the extinction rules for the (011) domain walls, the displacement vector 〓 along 〓 can be dertermined, which is parallel to the line of intersection between the domain wall and the plane consisting of spontaneous polarization vectors on both sides of domain boundary; from selected area electon diffraction of crystals including domain boundary, we not only examine slight difference in the crystal parts on both sides of the domain boundary, but also obtain crystallographic relationship between them, that is, there exists a 180°rotation symmetry operator along a normal of domain wall. The other is Z or ring shaped a-c 90°domain boundary along {010} direction, and the displacement vector 〓 runs along 〓 direction.
根据界面相对于样品中(100)观测面取向的不同，90°畴可分为两类：一类为薄透镜片状或环状的a-a90°畴，其界面平行于{110}，多数不带电，由消光规律可确定其位移矢量平行于畴界面与自发极化所在平面的交迹，即，〓方向，而从包含畴界的选区电子衍射图可知，这种不带电的90°畴界两侧存在微小的取向差，其界面两侧的结晶学关系为以界面法线为二次轴的旋转关系；另一类为Z状或环状的a-c90°畴，其界面平行于[010]或[001]，相应的位移矢量为〓方向。
This will be the first and last image to demonstrate what I am basically doing throughout the initial modeling process; I started out with a simple rectangular plane with symmetry mode on and I keep on extruding its edges and placing them in their rightful coordinates repeatedly until the entire structure is complete.
这会是第一张，也是最后一张图说明我在整个的建模过程中使用的基本技巧。我从一个开启了对称模式的简单四边形开始制作，不断地将边挤出，然后把它们放置到合适的位置，直到完成整个结构。
The lamellae (10) have a resin body and a recess (13) in the inner surface (12), in the plane of symmetry.
薄板(10)在内表面(12)有一个树脂体和一个凹槽(13)，位于对称平面内。