本实用新型涉及一种差动交流调速电动机装置.The utility model relates to a differential alternating current adjustable - speed motor device.显然该新型差动保护兼有两种差动保护优势.It is evidently that novel scheme obtains both excellences of the above two differe...
For instance, electrocardiograph can detect heart's condition. Electroencephalograph can detect brain's condition.例如, 心电图仪可查抄人的心脏状态, 脑电图仪可查抄人的前脑状态.Objective To develop a portable electrocardiograph ( ECG ) moni...