But it is difficult to be synthesized, and its unstable structure results in rapid capacity fading and bad thermal stability.

但是该材料合成困难，由于结构不稳定会导致容量衰减、热稳定性差。

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As a result, the structure of that evolutionary tree is very unstable and can flip around.

结果是，进化树的结构变得非常不稳定而且能转变。

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Emerging economies are normally highly unstable due to the regular changes in industry structure, institutions and macro-economy.

由于产业结构，体系和宏观经济的不断变化，新兴经济通常都十分的不稳定。

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DaimlerChrysler will also have to deal with Mitsubishi's unstable ownership structure (see chart).

ECONOMIST: Daimler and Mitsubishi Motor

In a car with no air bags and an unstable body structure, a driver's biggest danger is the steering wheel.

NPR: AP IMPACT: Cars Made In Brazil Are Deadly

The crash tests found the Latin American model had a weak, unstable body structure that offered occupants little protection in even non-serious wrecks.

NPR: AP IMPACT: Cars Made In Brazil Are Deadly