三轴的

In my study, we use a 4F acoustic lens which f-number is 1.3 to set up a photoacoustic imaging system. With same axial and lateral magnification, 3D photoacoustic imaging system with 4F acoustic lens can detect photoacoustic signal distribution on object plane in real-time, and get the different axial distance signal to show the 3D photoacoustic image by different signal receiving time.

本研究采用相对孔径为1.3的4F声透镜，设计三维光声影像系统，利用4F声透镜景深范围内之轴向与横向放大倍率相等，即时性的重现物平面所发出的同调性光声讯号分布，并利用不同的接收时间来呈现不同深度距离的讯号成像，取得物平面上受测物的三维光声影像。

Secondly, the paper is expanded from follow three aspects: the virtual design, the virtual process and the product data managementduring the developing the torque converter. Applying the key technique of concurrent engineering---design for function, design for assemblyand design for manufactureof the method of design for "X", the virtual design of the torque converter is accomplished in CATIA V5. Then the model constitution and the simulation of virtual process of the torque converter is done in CATIA V5, including the model constitution and the simulation of 5-aixe NC virtual process of the vane, the model constitution（material:PVC） of the idler pulley rapid prototypingand the virtual assembly and the motion simulation of the torque converter, etc. 3-D data exchange between various CAD systems is realized by using STEP standard. The lever of classing the character model of the torque converter is given. And the access authorization is set up and given to manage the partners' reading/writing the product data.

应用并行工程的关键技术之一——面向产品全生命周期的设计DFX中面向功能的设计DFF、面向装配的设计DFA和面向制造的设计DFM的方法，在CATIA V5中完成液力变矩器虚拟设计；在CATIA V5中对液力变矩器进行虚拟加工建模和仿真，包括液力变矩器导轮叶片五轴数控加工刀轨建模与仿真、导轮快速成型RP建模、液力变矩器虚拟装配和运动仿真等；采用STEP标准实现多CAD系统之间三维数据交换，提出液力变矩器特征模型的分级标准并对三维模型数据进行分级管理，制定相应的权限等级以规范合作厂家的产品数据管理层次。

Based on the single-axis air-bearing test bed, three experiment schemes are creatively designed for investigating the behaviors of rigid-flexible coupling dynamics:(1) experiment scheme for structural dynamics problem under a non-inertial frame,(2) experiment scheme for rigid-flexible coupling dynamics with unknown large overall motions,(3) experiment scheme for modal analysis of a typical rigid-flexible coupling system.

为了能更深入地揭示刚柔耦合动力学特性与验证本文提出的一次近似模型的正确性，最后重点介绍了我们在单轴气浮台动力学仿真实验平台基础上，经过多次探索和总结，创造性地设计的三套刚柔耦合动力学实验方案：(1)非惯性系下结构动力学问题的实验研究方案，(2)大范围运动为自由的刚柔耦合动力学问题的实验研究方案，(3)刚柔耦合系统模态分析实验方案。这三套方案从实验的角度来讲是可行的，这为下一步的实验工作打下了基础。

The three side surfaces of that sphenoid solid are parts of the surfaces of the mentioned cones and, as a result, the said sphenoid solid can rotate in the internal surface of the corresponding cone, when the corresponding cone axis or the corresponding semi - axis of the three - dimensional rectangular Cartesian coordinate system rotates.

上述楔形体的三个侧面是前面提到的锥形的组成部分，于是，当相应的锥形轴线或者相应的三维直角坐标系的半轴转动的时候，上述楔形体可以在其锥形的内表面转动。

This article mainly simulates gradually damage destruction process of rock, major in determinationg the definition of rock three-dimensional damage tensor, simplify to the damage tensor and obtain its engineering calculation method, and obtains the basic expression form of equivalent stress by equivalent stress assumption, symmetrization to the actual stress, thus obtains construction relation of the festival principle of three-dimensional damage rock mass, finally couples elasticity- plasticity with damage in the finite element equation, with reference to elasticity-plasticity gradually degenerated method thought, simulates rock damage to advance gradually the destruction process in finite element method, draws up elasticity - plasticity and damage coupling two-dimension finite element procedure with the C language in the VC contact surface, by simulating experiment destroyed process, acquires destruction image and the axial load distortion curve of model, agreement with the experimental result.

本文主要模拟岩石渐进损伤破坏过程，确定岩石三维损伤张量的定义，对损伤张量进行简化计算并得出其工程计算方法，采用等效应力假设得出有效应力的基本表达形式，对有效应力进行对称化，得出节理损伤岩体的三维本构关系，在有限元方程中实现弹塑性和损伤耦合；借鉴弹塑性渐进退化方法的思想，采用有限元的方法模拟岩石损伤渐进破坏过程，用C++语言在VC界面编制了弹塑性和损伤耦合的二维有限元程序，通过模拟已有的实验破坏过程，得出模型的破坏图像和轴向荷载变形曲线，与实验结果基本一致。

The fixed assets are 78 million Yuan. The main equipment for mould is imported from abroad such as: Three coordinate numerical control milling machine imported from Japan, on set; large type the five coordinate milling machine typed dragon imported from Spain, sise (4000 x 2500), one set; three coordinate numerical control processing center size (2000 x 1000) imported from Spain, one set; powerful numerical control milling machine typed dragon imported from Taiwan, size (3200 x 2540), one set; five coordinate milling machine typed with five drift link movement imported from Italy, size (4000 x 2500), one set; Five faces numerical control milling machine HVM502T typed dragon imported from Taiwan, one set; numerical control scanning measuring machine imported from America size (5000 x 2438 x l824), one set. Others sophisticated equipment are made in China, such as numerical control cutting machine, planer typed dragon, pressing machine for research, total 16 set; advanced computer graphical working station, total 40 sets. The automobile cover has become into advantage, which is supplied various auto. Cover mould and cool Press mould to many big factories, such as: Jinan Auto. Manufacturing General Factory, Beijing Light-duty Auto. Manufacture Co., Changhe Auto. Manufacturing Factory, Shandonq Bulldozed General Factory, Jinan Diesel Factory, Qongdao Sifang Locomotive Factory, Dongfeng Auto.

该厂现有固定资产7800万元，用于模具制造的有日本引进的数控三座标铣床一台，西班牙引进的大型五坐标龙门仿形铣床一台（4000*2500），三座标数控加工中心一台（2000*1000），从台湾引进的强力数控龙门铣床一台（32O0*2540），从意大利引进的五轴联动五座标龙门铣床一台（4000*2500），从台湾引进五面体数控龙门铣床HVM502T一台，从美国引进的数控扫描测量机一台（5000*2438*1824）以及国产联高精尖的数控切割机，龙门刨床、研配压床等大型设备 I6 台套，高档计算机图形工作站40多台，在模具制造方面已形成制造汽车覆盖件模具的优势，产品质量达到国内先进水平，多年来为济南汽车制造总厂、北京轻型汽车制造有限公司，昌河汽车制造厂、山东推土机总厂、济南柴油机厂、青岛四方机车厂、东风汽车公司等大型骨干企业的产品更新换代生产制造了各种类型的覆盖件模具及冷冲模具，受到用户的好评，并建立了较稳定的供需关系。

Results The accurate position of bone impacted and unerupted teeth in the complex maxilla or mandible anatomy structure were clearly reflected by 3DX-CT scan and 3D reconstruction. Nineteen impacted and unerupted teeth got anticipate effects by formulating different treatments according to 3DX-CT imaging data.

结果 牙科三维CT能清晰显示埋伏牙的形态、大小、位置、长轴角度、与邻牙的结构关系等。19枚埋伏牙依据牙科三维CT扫描提供的影像学信息制定不同的治疗计划，均取得了预期的临床效果。

Blade according to claim 1, characterised in that the spar is divided into two bundles (10a, 10b), spaced apart from one another in the shell (4), extending longitudinally on either side of the axis of change of blade pitch, and coacting with the suction face covering (4b) and the pressure face covering (4a) forming a triple torsion box, the filling being constituted by three filling bodies one of which (12b) is arranged between the two bundles (10a, 10b) of the spar and between the pressure face covering (4a) and the suction face covering (4b) of the shell, a second one of which (12a) is a leading edge filling body, housed at the (12c) is a trailing edge filling body, housed at the rear of the rear bundle (10b) of the spar.

刀片根据权利要求1 ，特色是在说， SPAR公司是分为两束（ 10 A条， 10 B条），间隔，除了从一个另一个在蚬壳（ 4 ），纵向延伸的两旁轴改变叶片间距，和coacting与吸力面对包括（ 4B ）条和压力，面对包括（ 4A ）就形成了三重扭转框中，填补被所构成的三充填机构的其中之一（ 12 B条）是安排两国之间的捆绑（ 10 A条， 10 B条）该SPAR公司之间的压力，面对包括（ 4A ）条和吸力面对包括（ 4B ）条的壳，第二个其中（ 12 ）是一家领先的优势，充填体，住在（ 12 C ）是一种缘加油站机构，安置在车尾后方束（ 10 B条）的SPAR公司。

In order to obtain the correct height reconstruction of a measured object through the traditional Fourier transform profilometry, the connecting-line between the exit pupil of the projecting lens and the entrance pupil of the imaging lens must be horizontal and set to parallel to the reference plane.

在拍摄过程中，采集完参考平面的光场后，只需要再采集一帧条纹图形，通过傅里叶变换、频谱滤波、逆傅里叶变换、相位展开等处理后就能得到物体的三维数据。采用传统的傅里叶变换轮廓术进行三维物体面型测量时，必需保证投影装置出射光瞳和成像装置入射光瞳的连线与参考面平行，并且它们的光轴应在同一平面上，才能得到较为准确的测量结果。

In this way, through the plug 5 to 6 within the cylinder head under the shaft at different positions and round hole rack up 4 different locations of the holes interspersed assembly together, can achieve wheels Ⅰ,Ⅱ,Ⅲ three status, the completion of three functions.

这样，通过插销5，将内筒体6下轴头上不同位置的孔和轮架4上不同位置的孔穿插装配在一起时，即可实现轮子的Ⅰ、Ⅱ、Ⅲ三种状态，完成三种功能。

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％。