英语语法分析

Electrocardiographic abnormality was associated with the degree of clinical condition and prognosis.

心电图异常与病情轻重及预后密切相关。

As the passenger's condition worsened, the device was also used to transmit an electrocardiographic (ECG) trace.

在这位乘客病情恶化的同时，这台装置也在源源不断地发送着心电图的信号。

To study the subjective fatigue and its influence on electrocardiographic abnormality among highway maintainers.

了解养路工的主观疲劳状况，并探讨其与心电图异常的关系。