Track segment element is applied to simulate low vibration track ( LVT ).

采用轨段单元模拟弹性支承块式无 砟 轨道结构.

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ECG examination can detect LVT in time, observe the changes of LVT and guide clinic treatment.

超声心动图检查能及时检出左室血栓, 并且可以随时动态观察血栓的改变,为临床诊疗提供依据.

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Objective To stduy the influence of Left Ventricle Thickening ( LVT ) of Long - term hypertensive patients on prognosis.

目的探讨高血压患者左室肥厚对预后的影响.

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