稳定的

The concept of harmonic control between two systems is presented. Necessary and sufficient conditions are given for harmonical stabilization of two systems. These results can be generalized to harmonic stability problems for more than two systems. Examples are given to illustrate the results.

提出了两个系统协调控制的概念，主要研究了不同系统间的互助合作问题，给出两个系统间可协调稳定的充要条件及构造协调控制律的算法，并举例说明了所给结果的有效性，这些结果都可以向多系统协调稳定问题推广。

The results show that although both Ni substitution and Mg vacancies are effective in desorbing hydrogen at lower temperatures, the substitution of Ni at the Mg site is energetically more favorable than the formation of Mg vacancies. The Ni atoms of NiF2 can replace some Mg atoms of MgH2 systems, the reaction of NiF2+3MgH2=MgF2+Mg2NiH4 during mill process is accelerated, thus, MgH2 with the higher stability can be changed into Mg2NiH4. Because of a ternary hydride Mg2NiH4 with lower stability forming, the dehydrogenating properties on Ni doped MgH2 systems are improved.

结果表明：Ni替代Mg和创造Mg空位对MgH2体系解氢而言，均发挥有益作用，而形成Mg空位所需能量(6.51 eV)高于Ni替代Mg所需能量(2.12 eV)，表明低温下Ni替代Mg对MgH2体系解氢而言更有利，至此NiF2中的Ni替代MgH2中的Mg，有利于加速化学反应NiF2+3MgH2=MgF2+Mg2NiH4向右进行，使结构稳定的MgH2发生转变，生成结构不稳定的Mg2NiH4，这样体系解氢过程不是通过MgH2，而是转变为通过Mg2NiH4进行，因此，Ni掺杂提高了MgH2体系的解氢性能。

Based on the idea of modeling, the paper reasonably predigests a complicated actual system, demonstrates the feasibility of hanging method in theory, studies connection between stability and influencing factors, and brings forward an improved method of design that can be regarded as academic basis for further experiments.

用建模的思想，把复杂的实际系统合理简化，在理论上论证了悬挂稳定的可行性，研究了稳定效果与影响因素之间的关系，并提出了设计改进方案，作为进一步实验论证的理论依据。

The technique of microwave sterilize and refreshing have overcome the uneven, no thorough, unsteady defects of microwave sterilize. It makes microwave sterilizes to be suitable to demand of stability , homoeothermic preserved , safe, hygiene and low cost for industrialization product. And it has got very satisfied effects after use.

其中微波杀菌综合保鲜技术克服了微波杀菌不均匀、不彻底不稳定的缺陷，使微波杀菌适合于工业化生产的稳定、常温保存、安全卫生、成本低廉的要求，经全国各地近百家企业的生产应用，取得了非常满意的效果。

With maximum arch support and underfoot stability, this platform is ideal for those constantly on the move, needing support and stability with every step.

最大的拱的支持和脚下稳定，这个平台那些不断在移动，需要支持和稳定的每一步的人最理想的选择。

The results show that the mud flats is obviously wave characteristics in plane, the erosion variation from low tidal flats to the top of the slope under water is great in cross section, the relative stable tide currents and wave strength keep the mud flats stableness in dynamic, and the key of the flat er...

本区岸滩纵向上由东向西存在着明显的波状变化特征，在横向冲淤变幅上以低潮滩至水下斜坡上部最为明显；相对稳定的沿岸潮流和波浪作用强度是岸滩稳定的动力保证，沿岸泥沙供应量的变化则是局部岸滩冲淤变化的关键所在。

The spatial semi-variogram values of above-ground biomass of perennial herbs and Mesophytes, following the increase of spatial distances, showed decreasing trends when semi-variogram values exceeding the effective ranges. Howeve,semi-variogram values of above-ground biomass of other functional groups, following the increase of spatial distances, showed a trend of increasing spatial variability, but semi-variogram values were at unchanged value when exceeding the effective ranges.

多年生草本和中生植物生物量变异函数值，在出现一个相对稳定的基台值后，开始下降，并随着空间距离的增加，空间变异性有减弱的趋势，而其它各功能群生物量表现出随着距离的增大空间变异性增强的趋势，但超过其变程后半方差函数值也基本稳定在一个极限值附近。

Briefly, the EV-1 produces selectable, sustained EvP when used alone, and acts as an intermediate link allowing the SG-1 to create sinusoidal and pulsatile extravascular pressure waveshapes.

然后，此压力由经过电子饲服阀从 EV-1接收到的信号调节，产生所需要的稳定的或不稳定的血管外室压力。饲服阀是 EV-1的一个部件。

Firstly, the diffusion of oxygen atom from the SFCC to SHCP on Zr(0001) surface is calculated. The active energy for the diffusion is 0.77eV. Secondly, the diffusion of oxygen atom from the SFCC to Octa(2,3) via Octa(1,2) is calculated too. There are 2 energy barriers for oxygen atom to overcome, the active energies are 2.14eV and 2.57eV.

我们首先计算了氧原子从稳定的表面面心立方位置向表面六角密排位置的扩散，其扩散激活能为0.77eV；然后计算了氧原子从稳定的SFCC位置扩散到表面下第1层与第2层之间的八面体间隙Octa(1，2)位置，然后继续向表面下第2层与第3层之间的八面体间隙Octa(2，3)位置扩散，在此过程中氧原子需克服2个能垒，其激活能分别为2.14eV和2.57eV。

It must be pointed out that in recent years, significant and complex changes have taken place on the Taiwan Island, where the "Taiwan independence" secessionists have intensified their secessionist activities, causing serious impacts on the peaceful and stable development of cross-Straits relations.

六、必须指出的是，近年来，台湾岛内局势发生了重大、复杂的变化，&台独&分裂势力的活动不断加剧，给两岸关系和平稳定发展造成了严重影响，日益成为两岸关系发展的最大障碍，成为对台海地区和平稳定的最大现实威胁。

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％。