查询词典 statics

Most schools require at least one course in calculus and descriptive geometry before the introduction of engineering statics .

很多学校要求学生在学习《工程静力学概论》之前最起码先修过《微积分》或《画法几何》中的一门。

Five novel torsion-mirror optical actuators including double-beam thickness differential structure with single torsional axis, double flexible folded-beam structure with single torsional axis, double-beam vertical torsion comb structure with single torsion axis, four-beam differential compound-micromirror structure with double torsional axis and the combined structure of the four basis forms above, are brought forward. All of these devices could be fabricated by the same silicon micromachining process we have developed. The deformation compensation design with local enhancement for the thin torsional beam which is the key structure of these devices is also put forward to improve the reliability. The three-dimension solid model and two-dimension reduced order model of the torsion-mirror optical actuator are established and then the numerical simulations for evaluating the device characteristics of the statics, dynamics, electrostatic field, mechanical and electrostatic coupling, fluid and solid coupling are carried out to optimize the structure design. Furthermore, three optical fibre clamping structures which could be integrated monolithicly are designed and analyzed to improve the optical coupling capability. 4. Three flexible process flows combined with bulk silicon micromachining and surface silicon micromachining are brought forward to fabricate these novel single-crystal silicon or polysilicon torsion-mirror optical actuators by using the same lithography masks for both SOI wafer and regular silicon wafer. A series of important process experiments are carried out to optimize the process parameters and the process flows. Some novel and typical process phenomena which occurred during the microfabrication are analyzed and then the corresponding solutions are put forward. 5. A MEMS dynamic testing system which exploit blur image synthetic technique, stroboscopic image matching technique, stroboscopic mirau microscopic interferometry technique and microscopic laser dopper vibrometer technique is set up to measure three-dimension and six-freedom micro motions of any MEMS devices with nanometer resolution.

在对硅微机械扭转镜光致动器的光机电特性系统地理论研究的基础上提出了硅微机械扭转镜光致动器的结构设计准则。3、提出了单轴双梁厚度差分结构、单轴双柔性折叠梁结构、单轴双梁垂直扭转梳齿结构、双轴四梁差动复合微镜结构以及以上四种基本结构组合后的衍生结构等五种工艺加工技术兼容的新型的硅微机械扭转镜光致动器，对器件关键结构薄厚度、高耐疲劳扭转梁进行了局部加强的变形补偿设计，建立了器件的三维实体模型以及两维降阶模型，对提出的新结构硅微机械扭转镜光致动器进行了系统的静力学、动力学、静电场、力电耦合和流体固体耦合的建模仿真与优化设计，同时设计并分析了三种可实现单芯片集成的弹性光纤定位夹紧结构。4、提出了组合体硅微加工技术与表面硅微加工技术、兼容同一套光刻版图、可分别基于SOI 晶片和普通Si 晶片、适应于制造提出的各种新结构单晶硅和多晶硅硅微机械扭转镜光致动器的三套柔性加工工艺流程，开展了一系列重要工艺步骤的单项工艺试验，对工艺流程与工艺参数进行了优化，针对加工过程中出现的具有普遍意义的典型工艺问题进行了讨论和分析，并提出了解决方法。5、创新性地将模糊图像合成技术、频闪图像匹配技术、频闪Mirau 显微干涉技术与显微激光多普勒测振技术有机结合，建立起了一套周期运动测量与瞬态运动测量相结合、单点运动测量与全视场运动测量相结合、满足不同MEMS 器件各种动态测试要求的集成的MEMS 三维六自由度微运动精密测量系统。

Carries on the endogenic force to pressurize the auto-adapted mechanism statics analysis and the essential hinge arrangement.

进行内力加压自适应机械装置的静力学分析及关键铰链的布置。

Chooses one kind of movement chain to carry on the endogenic force to pressurize the auto-adapted mechanism function structural design and the statics analysis and the movement transmission analysis.

选择其中一种运动链进行内力加压自适应机械装置的功能结构设计及静力学分析与运动传递分析。

Auto-adaptive wave filter theory and technology is the main content of statics and non-stable random signal processing, which has the best performance of VINA and KARMAN wave filter, and no base knowledge or initial requirement is required. It is adapting outside environment by self-studing.

自适应滤波理论和技术是统计信号处理和非平稳随机信号处理的主要内容，它具有维纳滤波和卡尔曼滤波的最佳滤波性能，但不需要先验知识的初始条件，它是通过自学习来适应外部自然随机环境的。

Auto-adaptive wave filter theory and technology is the main content of statics and non-stable radom signal processing,which has the best performance of VINA and KARMAN wave filter,and no base knoledge or initial requirement is required. It is adapting outside environment by self-studing.

自适应滤波理论和技术是统计信号处理和非平稳随机信号处理的主要内容，它具有维纳滤波和卡尔曼滤波的最佳滤波性能，但不需要先验知识的初始条件，它是通过自学习来适应外部自然随机环境的。

Archimedes in the mechanical aspects of the most outstanding achievements, these achievements mainly concentrated in the statics and hydrostatics regard.

阿基米德在力学方面的成绩最为突出，这些成就主要集中在静力学和流体静力学方面。

Where r is the uniform rate of surplus value, is an uninteresting and redundant detour for the economist interested in the statics and dynamics of the distribution of incomer

其中r是统一剩余价值率，对于收入分配静态和动态分析感兴趣的经济学家这是一个令人厌倦和多余的绕弯。

Trend envelope forecasting method is a forecasting method which was produced by many subject intersecting synthetically.This method was oriented the concept of infimum and supermun in mathematica analysis.This model which was decided dependedon program problem,and whose means have the aim of the method of statics analysis.

趋势包络预测方法是一种由多学科综合交叉而产生的预测方法，它的思想源于数学分析中确界的概念，它模型的确定依赖于规划问题，它预测的手段借助于统计分析的方法。

Picker-wheel support structure was used in strip label papers of tobacco industry, but it had appeared some problems: picker-wheel vibrates easily, label paper was picked insecurely, and double-shafts generated deformation and linear bearings wear easily. The ultimate cause was founded by analyzing linear bearings stress from statics and dynamics. The original structure of double-shafts one-side support was replaced by two-side support with one fixed end and one free end.

针对FOCKE350S条盒商标纸拾取轮总成支撑结构拾取轮易振动、商标纸拾取不可靠、双轴易弯曲变形、直线轴承磨损快的情况，从静力学和动力学的角度分析了直线轴承磨损快的根本原因；并将原来双轴单侧支撑结构改为双轴双侧支撑，采用一端固定，一端游动的支撑方式。

It also analyzes the feature and development of semi-finish grinding and finish grinding by roller press.

同时进行了辊压机半终粉磨和终粉磨系统的特点和发展分析。

When I got there, water was dripping slowly from the ceiling and forming a pool on the floor.

当我到那里的时候，水是慢慢地从天花板滴而且形成在地板上的一个池。