稳态

After feasibility analyzing and parameter optimizing , a teeterboard pattern MEMS permanent magnet bistable structure supported by torsion and cantilever beam was fabricated by sacrificial layer technology of non - silicon surface micro fabrication .

在进行理论分析证实可行性和模拟仿真优化参数后，利用非硅表面微加工方法中的牺牲层工艺制备了一种扭梁悬臂梁支撑的扭摆式MEMS永磁双稳态机构。

With the help of tensor analysis theory, the velocity field and the strain rate field during the tri-walled tube forming process are deduced, and the energy rate and the needed driving force are determined.

运用数学物理方法，遵循能量守恒定律对卷焊管电阻直热式钎焊过程进行了稳态分析，求得了焊接区上的温度分布及钎焊各工艺参数间的关系，并进一步探讨了钎焊温度波动控制策略及方法。

Secondly, ANSYS is used to compute the thermal filed of air-core reactor. A coupled magnetic-circuit-thermal finite element model is proposed for thermal analysis. Finally, the distribution of the thermal field and the maximal temperature are given.

对干式空心电抗器的温度场进行了有限元分析，建立磁场-电路-温度场的耦合计算模型，得到空心电抗器的稳态温度场分布以及最高温度值。

Instead of the rather complicated analytical method and computer aided numerical method for solving two dimensional steady state heat conduction problem of perforated metal sheet s this paper proposes an electroconductive paper based thermoelectrical analogy method.

开孔金属薄板的二维稳态导热问题采用分析解和计算机数值解都相当复杂，不便实用。

Using the opened thermosiphon of 38x3 as experimental element and water as working fluid,the characteristics of dynamic low load boiling,stable severe boiling heat transfer coefficient and critical heat flux are gotten for the opened thermosiphon at the pressure of 0.02-0.1MPa and 0.1-0.8MPa respectively,which makes up the drawback that the opened thermisiphon has not yet accurate boiling heat transfer relationship formulas.

本文以工程上常用的Φ38×3的开口封底为实验元件，以水为工质，对开启式热管内的动态低负荷沸腾、稳态旺盛沸腾及临界沸腾特性进行系统的可视化实验研究，实验压力为0.02～0.8MPa，实验得出了Φ38×3的开口封底管在工作压力为0.02～0.8MPa和0.1～0.8MPa下的管内沸腾传热系数及临界热负荷计算关联式，弥补了开口封底管——这一新型传热元件尚无准确的沸腾换热关联式的缺陷。

A coupled-unstable-equation-system of the heat, moisture and air transfer of the third boundary condition in the building walls with one dimension were developed, and software was developed using numerical simulation.

为了研究建筑墙体的热质耦合传递规律，该文考虑了太阳辐射的影响，建立了在第三类边界条件下建筑墙体非稳态热、湿及空气渗透耦合传递的物理及数学模型，开发了相应的数值模拟计算软件。

Beginning with FEM solution for transient heat conduction, turning to the theory of solar radiation and some heat engineering manuals, utilizing the commercial FEM software ANSYS, the variation regulars to time of temperature field in the standard cross-sections of the composite beam and tower columns of Harbin Sifangtai Bridge have been clarified under the third boundary condition.

本文从非稳态温度场的有限元解法入手，利用太阳辐射的相关理论和国内外热工工程手册上的数据，按第三类边界条件给四方台大桥叠合梁和主塔的一个标准截面施加边界温度荷载，采用ANSYS 软件求出了标准截面温度场随时间变化的规律。

It is found that the threshold intensity of nonlinear bistability of the one dimensional photonic crystal with dispersive media is much lower than that without dispersive media.

在光学双稳态中，与仅含非线性媒质的光子晶体相比，得到了低得多的阈值入射光强。

Based upon the engine efficiency map and battery internal resistance curve, a real-time control strategy is proposed for parallel hybrid electric vehicles using the load leveling concept and logic threshold approach to control the torque distribution, various operation modes and the dynamical transitions between the modes for the hybrid powertrain.

以发动机稳态效率图和电池的充放电内阻曲线为依据，提出了基于负荷平衡和逻辑门限方法的并联式混合动力汽车实时控制策略，用以控制混合动力系统的转矩分配，实现混合动力系统的不同工作模式以及模式间的动态切换。

The experimental results show that the control system has good steady-state performances and fast transient response.

实验结果表明该控制系统既有较好的稳态性能，又有较快的响应速度。

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％。