A pressure disturbance cannot drive the energy release profile uniformly to the anti-node region to result in a sustained longitudinal wave.

压力扰动不可能驱使能量释放分布图移至波腹区域以产生持续的纵向波。

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Iraq has been wracked by a wave of the most sustained violence the country has seen since American troops left in late 2011.

NPR: Evening Bomb Blasts Kill 30 In Baghdad

One can say that the capital and the adjoining areas have been lifted and sustained by a credit boom and a wave of income from natural resources.

FORBES: Russian Regional Economic Inequality - Tyumen is like the United States, Stavropol is like Sri Lanka