The simulated extraction of weak frequency variation signal is carried out with the expressed Resonant frequency locking property when system transits from chaotic to great periodic motion.

利用系统从混沌状态到大周期转变时所表现出的共振锁频性质，进行了微弱频率变化信号的仿真提取。

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They say that if Monsanto wins, the impact will extend far beyond agriculture—locking up property rights in an array of important areas.

他们说，如果孟山都公司获胜，其影响将远远超出农业领域——在一系列重要领域锁定产权。

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This paper analyzes the property of PDM and a nested transaction model which can improve concurrency of two phase locking mechanism.

本文分析了PDM中设计事务的特点，研究了PDM的嵌套事务模型以提高两段锁系统的并发性。

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