小振动

In the present study, the effect of centrifugal force was investigated by three dimensional finite element analyses; the vibration characters of random mistuned blade-disc were also being investigated by probability methods and the Young's modulus of material of all blades are regarded as random parameters.

结果表明，离心力对失调叶片轮盘系统局部化振动有减弱作用；所有叶片弹性模量在5%误差范围的随机失调系统，其固有频率与非失调相差很小，即失调叶片—轮盘系统可以按照循环对称结构进行模态分析。

Though in the impact process exists rebound phenomenon and the wave form becomes interrupting impulses, yett the energy loss of the mass is very low. So it is thought to link the interrupting impulses to a continuous wave form by using proper way and then to process the data by mature vibration analyzis technique.

该方法认为，尽管冲击过程中存在着&回弹&，波形成为断续的脉冲，但质量块在空中运动中能量损失很小，可以用适当的方法把它们组合成连续波形，以致我们可以用成熟的振动分析技术进行数据处理。

Amplitude limiting devices, or snubbers, are installed on the outside of the core support barrel near the bottom end in order to minimize vibration induced by the coolant flow.

振幅限制器或缓冲器被安装在位于底端附近的活性区支撑吊篮的外面，以便极小化由于冷却剂流动而引起的振动。

UV absorptions of the complexes are redshifted compared with those of the monomers owing to the less LUMO-HOMO energy gap. IR frequencies of N-H bonds in the complexes are lessened due to the formation of hydrogen bonds.

LUMO-HOMO能隙的减小使电子光谱吸收峰发生红移，氢键的形成削弱了单体原来的N-H键，使红外振动频率变小。

The main products has:§105mm -§1000mm large, medium and small diameter concrete, granite, marble, diamond saw blade;§20mm -§300mm hollow thin-walled diamond bit; various sizes of single-phase, three-phase drill reinforced concrete and concrete strength Qing Java machine, concrete pavement cutting machine and vibration rammers, petrol rammers, reinforcing steel cutting machine, bending machine, tamping machines and other frogs.

主要产品有：ф105mm--ф1000mm大、中、小直径混凝土、花岗岩、大理石、金刚石锯片；ф20mm--ф300mm金刚石空心薄壁钻头；各种规格单相、三相钢筋混凝土钻孔机以及混凝土强力清渣机，混凝土路面切割机和振动冲击夯，汽油冲击夯、钢筋切断机、弯曲机、蛙夯机等。

The main scope of application: Diamond Cutter welding, carbide saw blades, machining with carbide tools of welding, such as diamond tools, drill, tools, planing, milling cutter, reamer, such as welding and cutting tools; standard parts , bolts of hot upsetting, such as high strength bolts, nuts, etc.; hardware tools, hand tools, heat treatment, such as pliers, wrenches, rotary tools, hammers, axes; all kinds of automobile fittings, motorcycle fittings of high-frequency quenching treatment, such as : crankshaft, connecting rod, piston pin, crank pin, sprocket, camshaft, valves, all kinds of rocker arm, rocker shaft; gearbox various gears, spline shaft, axle bronchitis, all kinds of small shafts, high-frequency quenching, such as various fork of the handle; metal parts of the heat treatment, such as a variety of gears, chain wheel, the wheels, vibrating screen, a variety of shaft, spline shaft, and marketing of high-frequency quenching treatment, etc.; machine tool machine tool industry bed rail, such as the quenching treatment.

主要适用范围：金刚石刀头的焊接，硬质合金锯片、机械加工用硬质合金刀具的焊接，如金刚石刀具、钻具、车刀、刨刀、铣刀、铰刀等刃具的焊接；标准件、螺栓的热镦，如高强度螺栓、螺帽等；五金工具、手工工具的热处理，如钳子、扳手、旋具、锤子、斧头；各种汽车配件、摩托车配件的高频淬火处理，如：曲轴、连杆、活塞销、曲柄销、链轮、凸轮轴、气门、各种摇臂、摇臂轴；变速箱内各种齿轮、花键轴、传支半轴、各种小轴、各种拨叉等高频淬火的处理；金属零件的热处理，如各种齿轮、链轮、行车轮、振动筛、各种轴、花键轴、销等的高频淬火处理；机床行业的机床床面导轨的淬火处理等。

The understanding of the material properties is rely on the study of the small yardstick materials lattice vibration, phonon structure and electronic structure.

对材料性质的认识和调控离不开对小尺度材料的晶格振动、声子结构和电子结构的研究。

After crushed by hammer crusher, the big materials become small sizes ones and they are sent to storage bin by elevator. The electromagnetic vibrating feeder will send them to the middle of first dial evenly, the materials will be driven to the edge of dial by centrifugal force, and fall down into the ring and crushed and grinded by roller, then the materials will fall down into the second and third ring, and crushed and grinded. The high pressure centrifugal blower will inhale air from the outside and blow the materials which are grinded in the third ring to powder classifier.

大块物料经锤式破碎机破碎成小颗粒后由提升机送入储料仓，电磁振动给料机将物料均匀的送到上转盘的中部，物料在离心力的作用下散向圆周边，并落入磨环的滚道内被环辊冲压、滚碾、研磨而粉碎，物料经第一层粉碎后落入第二层及第三层，高压离心风机的抽吸作用将外部空气吸入机内，并经过第三层粉碎后的粗粉带入选粉机内。

Jump for the most common eyelid orbicularis oculi muscle of the "little muscle vibration syndrome", each jump a few seconds to several minutes; normal circumstances as long as a period of time after the automatic recovery, but also close your eyes a rest look, or deposited his eyes with hot towel, as well as with a balanced diet and adequate sleep, to shorten the eyelid beating time.

跳为最常见的眼睑眼轮匝肌的&小肌肉振动综合症&的肌肉，每几秒钟到几分钟的时间，如在一段时间内维持正常情况下，自动恢复后跳，也闭上你的眼睛休息一下看看，或用热毛巾存入他的眼睛，以及均衡饮食和充足的睡眠，以缩短眼皮跳动的时间。

Periodic fluid pulsation in aeroplane hydraulic piping could induce fluid-construction vibration and lead to fatigue damage. It is impossible to find the error sensor's optimization location because of the pressure standing wave, and the pulsation attenuation effect is not perfect when adopting pulsation attenuation at single point. For this reason, a distributed active control method of fluid pulsation was presented. To avoid stationary point in all aviation states, several fluid pulsation actuators and error pressure sensors were placed along the piping. The second fluid pulsation produced by actuators can counteract the primary pulsation brought by aviation piston pump and make the mean pulsation of whole piping minimum when adopting adaptive feed- forward control and the filtered-X least mean square algorithm.

针对飞机液压能源管路系统中的周期性流体脉动诱发流固耦合振动，导致管路疲劳损伤的问题，针对管路中存在压力驻波特性，在采用单点消振时寻找误差传感器最佳布局位置困难而引起脉动抑制效果不理想的缺点，提出了一种分布式流体脉动主动控制方法，即沿管路不同位置布置多个主动消振阀和误差压力传感器，在任意飞行阶段，避开压力驻波点，以误差压力传感器的脉动测量值为控制目标，采用一种针对周期脉动主动控制的自适应前馈控制法和多通道自适应滤波－X LMS算法，调整控制器参数，使主动消振器产生的次级脉动与管路中的初始脉动相互抵消，达到整个管路中的平均流体脉动最小的效果。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。