To measure the heart rate, for instance, the shirt contains a pair of non-sticky sensors that can produce a simplified electrocardiogram.
2
他们研究每个人的心电图(ECG心跳记录)，测量电信号在心脏不同部位运行的时间。
They studied the electrocardiogram (ECG, a recording of the heartbeat) of each person, and measured the time taken for electrical signals to travel to different parts of the heart.
3
研究人员使用便携式监测测量他们的心跳，而咨询症状日志由参与者们自己完成。
Researchers measured their heartbeats using portable monitors and consulted symptom logs completed by the participants.
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