| 1. | Unstable equilibrium position
不稳定平衡位置 |
| 2. | Standard feedback control and delay feedback control are employed to stabilize the system to an unstable equilibria
利用标准反馈控制与时滞反馈控制实现系统不稳定平衡点的镇定。 |
| 3. | The essential problem is expounded as the form - finding analysis of a slack cable - strut system of with comperents loose lengths and under geometrically unstable equilibrium state maintained by its deadweight with given loose lengths of components
根据力密度法的思想，本文提出了一种松弛索杆体系几何非稳定平衡形态的通用找形方法。 |
| 4. | In order to cover the shortage of ogy method that needs an adjustable parameter of the system in advance , a simple control method based on state feedback and parameter adjustment is proposed to stabilize the unstable equilibria of chaotic systems
摘要针对ogy方法需要预先找到系统的一个可调参数的不足，基于状态反馈和参数调整，提出了稳定混沌系统不稳定平衡点的一种简单控制方法。 |
| 5. | One is increasing the corn demand another is decreasing supply and the other is combining the increase demand with decrease supply . the former ways lead to the price in higher level and the macro - control measures are invalidity . it is impossible to achieve and it is an unstable equilibrium . but the corn price is a little higher than the international corn price by the third way
前两种途径使玉米的市场价格仍维持在目前的价格水平上，宏观调控措施单一，是不太可能实现的，是一种不稳定的均衡；而第三种途径使玉米市场的价格略高于国际市场均衡价格，政府宏观调控空间增大，是可能实现的，也是一种较为稳定的均衡。 |
