Stability of normal shock waves in viscous materials is analyzed with linear stability theory(LST).

用线性稳定性理论，分析粘性物质中的正激波稳定性问题。

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The shock total pressure was estimated with the normal component of the Mach number using normal shock theory.

激波总压损失用正激波关系式通过马赫数法向分量估计。

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Defibrillators, implantable devices that deliver an electric shock to the heart to reestablish normal rhythm, began widespread clinical adoption in 2003.

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In milder cases you can have a small electric shock to get the heartbeat to return to normal, or like British Prime Minister Tony Blair had last year, a procedure called catheter ablation.

CNN: 'I'd be an invalid without this device'

If it detects a severe arrhythmia, the device is designed to shock the heart, causing it to revert to normal rhythm.

CNN: Cheney goes home after heart device implant