动力

Despite the Rossby Radius of Deformation around strong vortexes is much smaller than of the background, the results of experiments in the nondivergent barotropic model and in the shallow water model are similar. This indicates that there is little differences between vorticity dynamics and potential vorticity dynamics in the formation of the concentric eyewall structure of typhoons. The dynamics of this formation belongs to a slow manifold dynamics and the effect of the gravity waves is limited.

我们以浅水模式延续前人之正压双涡旋实验，虽然强涡旋周围的罗士比变形半径远小於背景环境值，但是涡旋交互作用结果和正压模式类似，亦即涡度动力和位涡动力在强台风形成双眼墙的结构之下并没有很大不同，皆属於慢速流形动力，重力波造成的影响很有限。

Historical evaluation isthe subjective's sensive express of historical meaning.

这是一个由内而外、由本质到现象不断循环的立体社会发展动力系统，其中每个环节都是社会发展的一个层面的动力，但都不是单独的最终动力。

By switching with these two brakes and the clutch, the vehicle may be switched in different driving modes; and controlling the rotation speed of the inner rotor can control the switching of the electrical stepless speed variator in different mixed driving modes.

切换两个制动器(9、5)，开闭离合器，车辆可在两种混联混合动力模式和纯电动模式之间自由切换。控制内转子(2)的转速可控制电力无级变速器在混联混合动力模式和并联混合动力模式间切换。

It is concluded that the nonlinearity of the pile decreases the seismic responses of the pile, but does not affect those of the warf significantly.

这种孔隙流体运动又影响了土层的动力反应行为，加之土体上面的海水也会影响土的动力反应，所以海岸码头环境中土层的动力反应是很复杂的。

It is generally thought that the dynamic subsidence is associated with supercontinental assembly and dispersal and subducting slabs.

动力地形一般认为具有两种成因，一种为与超大陆集聚和分散有关的动力地形，另一种为与大洋板片俯冲有关的动力地形。

Based on rail/wheel reaction and track/bride reaction theory and systems engineering theory, new vehicle-track and vehicle-track-bridge system dynamic models are established and discussed in details, including ballast track model and ballastless track model. The characteristics of the models are:(1) vehicle-track and vehicle-track-bridge system dynamic models are coupled in vertical and lateral;(2) track vibration on bridge is taken in account, track on bridge is considered as one or two layer continuous-point supported rail model, according to actual track structure, interaction between vehicle and bridge transfer from track structure;(3) three type of ballastless track models (tieembanked, elastic-tie-block, slab track) are presented;(4) models reflect the main feature of actual vehicle, track and bridge structure, the response computation frequency of models is relatively broad, which can be applied to analyze both low frequency and high frequency vibration.

基于轮轨相互作用和线桥相互作用特点，本文从系统工程角度出发建立了车辆、有碴轨道和无碴轨道、简支箱梁桥垂向和横向耦合系统动力分析模型，该系统模型具有以下特点：（1）车线、车线桥体系均考虑为垂向、横向耦合振动系统，车线间通过轮轨接触几何关系耦合，轨道与桥梁间通过轨道与梁体间的力与位移协调条件耦合；（2）充分考虑桥上线路在车线桥系统中参振作用，根据桥上线路轨道结构特点将桥上轨道结构模型具体化，即对桥上轨道结构视为多层支承体系，车桥间的动力作用通过轨道结构来传递；（3）建立了三种形式无碴轨道动力分析模型，即长轨枕埋入式、弹性支承块式和轨道板式无碴轨道模型；（4）系统模型详细，分析频带宽，适用范围较广。

Three dimensional linear hydroelasticity theory is applied to investigate the dynamic response of a box-shaped very large floating structure in regular sinusoidal waves in this paper.

利用三维线性水弹性理论研究了箱式超大型浮体结构在正弦规则波中的动力响应，用Bernoulli Euler梁解析解计算结构在真空中的动力特性，用弹性体三维势流理论计算结构的水动力系数。

Second, dynamic buckling condition is erected after analysis of perfect axial compression member with different boundary conditions, by which dynamic buckling critical load and corresponding buckling modal are obtained. These indicate the difference between dynamic buckling and static one.

其次，通过对不同边界条件理想轴心受压构件进行分析，建立动力屈曲条件，获得了动力屈曲临界荷载及相应屈曲模态，表明了动力屈曲与静力屈曲的差异。

Experienced in the Plant Facility,+3 years working experience (in air condition system、boiler、pressure vessel、pressure conduit and so on system),know some about electric knowledge.

具备丰富的机械动力专业知识和实践经验； 3年以上动力设备（通风空调系统，空压站，动力管道，制冷设备，水泵，废水处理，软水/纯水处理等）设计/施工/维护/改造工作经验，具备一定的电气知识。

In order to deter-mine the suspension point of double donkey headed oil suction pump and kinematics status and law of each component, this paper established corresponding analytic equation of kinematics and kinematics analysis, and carried Out calculation on the kinematics and kinetics law of the double donkey headed oil suction pump.

为了确定双驴头抽油机悬点和各构件的运动状态及运动规律，建立了相应的运动和动力分析的解析方程，并对双驴头抽油机的运动和动力规律进行了计算，由编制的相应计算机程序，确定出抽油机在一个周期内的运动参数与动力参数的变化规律，为合理选择电动机、设计机械换向及平衡重提供了理论依据。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。