Conclusion t wave memory phenomenon is common in ECG without pathological significance in the patients with manifest pre-excitation syndrome after RFCA.
结论T波记忆是显性预激综合征患者射频消融术后常见的一种心电现象，不具病理意义。
Methods Pre-excitation syndrome in our hospital 20 patients with atrial fibrillation, ECG characteristics and performance of their retrospective analysis.
方法选择我院预激综合征并发心房颤动的患者20例，对其心电图特点及表现进行回顾性分析。
In order to improve the output quality of the laser, we brought forward the concept of double pre-ionization, which is beneficial for the effective excitation of the laser media in the resonator.
为了提高激光器输出性能，我们提出了有利于腔内介质有效激发的双预电离概念。
In order to improve the output quality of the laser, we brought forward the concept of double pre-ionization, which is beneficial for the effective excitation of the laser media in the resonator.
为了提高激光器输出性能，我们提出了有利于腔内介质有效激发的双预电离概念。
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