结果胎儿心电图机描记的图形较普通心电图机描记的图形高5～15倍，差异显著；
Results The ECG waves by fetal electrocardiograph were 5~15 times higher than those by common electrocardiograph, which had significant difference statistically.
结果胎儿心电图机描记的图形较普通心电图机描记的图形高5～15倍，差异显著；
Results The ECG waves by fetal electrocardiograph were 5~15 times higher than those by common electrocardiograph, which had significant difference statistically.
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