The exponent decay of solution of wave equation with boundary memory is obtained by the energy method.

本文利用能量扰动法得到具边界记忆项波动方程初边值问题解的指数衰减性。

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It appears the mind regards a doorway as something experts call an ‘event boundary’, signalling the end of one memory episode and the beginning of another.

我们大脑似乎会将门视为所谓的“事件边界”（专家术语），标志着一个记忆场景的结束和另一个新记忆场景的开始。

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This means that database manager automatically determines the upper boundary on memory consumption.

这意味着数据库管理器自动确定内存使用的上限。

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Police officers are taking part in a charity walk around the Greater Manchester boundary in memory of two officers who were killed on duty.

BBC: PC Fiona Bone and PC Nicola Hughes