降等

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。

Exempted Habitat and the Yellow River to burst fan attached to flat topography, there are only eastern Longshan, shigongshan, Kishan, Langshan, double-lock the limestone More than 10 residues Venturi distribution; The entire Northwest Bozhou high terrain to l/9000 ground to the southeast of natural gradient-dumping.

辖境与黄河决口扇形地相连，地势平坦，仅东部有龙山、石弓山、齐山、狼山、双锁山等10余处石灰岩残丘分布；整个亳州地势西北高，以l／9000地面自然坡降向东南微倾。

Achieve dustproof, waterproof, beautiful waiting for a characteristic is modern factory building drops in temperature ventilated optimal choice.

达到和实现防尘、防水、好看等特征是当代车间降冷透风的最好选取。

One or more adverse drug events were reported by 94 (28%) patients in the step-up and 93 (29%) patients in the step-down group. All were minor events, including dyspeptic symptoms, diarrhoea, constipation, and bad/dry taste.

升序组94例（28%）、降序组93例（29%）报告≥1次药物相关不良事件，但均不严重，包括消化不良症状、腹泻、便秘、口干/口苦等。

Optimized calculation shows that, the comprehensive performance of the eddying tube is better than that of the smooth tube, and the comprehensive performance of the eddying tube with minor screw pitch and proper groove depth is excellent.

优化计算表明，旋流管换热系统的传热-阻力综合性能指标优于光滑管换热系统，旋流管的螺距、槽深对旋流管换热系统的传热、压降、功率消耗等影响很大，但是小螺距、适当槽深的旋流管的综合性能是优良的。

Such as these do a good job, we would wait in the fields at the dinner table next to the labors of the family, the early night drop, big people are arriving home, from my doorstep after the adults, always sincerely praise our sister, and my heart, ah, thus elatedly's.

等这些做好后，我们就在饭桌旁等待在田中劳作的家人，夜幕初降，大人们陆续回来，从我家门口经过的大人，总是由衷地夸奖我们姐妹，心里啊，美滋滋的。

Due to its good effect in the reservation of information of signal abrupt change, mathematical morphology is often applied in the detection and location of short-term power quality disturbance, however, there is still a defect of invalid detection existing in partial detection methods based on mathematical morphology while some zero-crossing disturbances are detected. In this paper three mathematical morphology based disturbance detection and location methods, i.e., the method based on first-order derivation and morphological gradient, the method based on morphological gradient and soft threshold processing and the method based on dq decomposition and top-hat transform, are analyzed, that is, by means of simulation the adaptability of these methods in the analysis on the signals of voltage sag, voltage swell and electromagnetic transient oscillation is compared.

数学形态学因其在保留信号突变点信息方面有很好的效果，因此常用于短时电能质量扰动的检测和定位，但基于数学形态学的部分方法仍存在对某些过零点扰动检测失效的缺点，文章分析了3种基于数学形态学的扰动检测和定位方法，即基于1阶求导和形态梯度的方法、基于形态梯度和软阈值处理的方法、基于dq分解和高帽变换的方法，通过仿真比较了3种方法在分析电压暂降、电压暂升、电磁暂态振荡等信号方面的适应性，结果发现基于dq分解和高帽变换的方法在检测过零点扰动时具有很好的效果，因此选取这种方法对实测扰动数据进行了检测和定位分析。

While in equal temperament scales, enharmonics are notes with identical name but different spellings (e.g. A flat and G sharp), in flamenco, as in unequal temperament scales, there is a microtonal intervalic difference between enharmonic notes.

在等程音阶里，异符同音是音名相同但是记谱不同的音符（例如，降 A 和升 G ），而在弗拉门戈里，就像在不等程音阶里那样，异符同音音符之间存在着微分音程的差别。

The results showed that with increase in mileages, the acid value would increase dramatically while the viscosity increases slowly, and little variation in flashing point, ignition point, water content, severity of wear index and number of big abrasion particles was found.

试验结果表明，随行车里程的增加，酸值显著增加，粘度缓慢增加，闪点、燃点略降，水分、磨损烈度指数和大磨粒数等指标无明显变化。

Clearer fluoroscope image and sharper radiographic image are offered by noise reduction processing and edge enhancement etc.

通过实时降噪和边缘增强等技术，获得更清晰的透视图像和更高锐利度的采集图像。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失