英语语法分析

The clinical tests showed that the method is effective for microvolt T-wave alternans detection.

分析研究及实测结果表明该方案可用于检测微伏T波交替。

Objective To investigate occurrence rate of QRS electrical alternans (QRSEA) among healthy Chinese.

目的调查中国人群QRS电交替（QRSEA）出现率。

Patients in the study took part in an exercise in which they recounted a recent angry episode while Lampert's team did a test called T-Wave Alternans that measures electrical instability in the heart.

郎佩特的研究小组让病人进行一项练习，即讲述最近发生的一件令他们生气的事情，同时通过一种名叫“T波交替”的试验来测量病人心电的不稳定度。