计算心电图额面QRS轴方向的小程序。通过输入心电图肢体导联的QRS波群主波方向即可得出额面轴的方向。-calculated the amount of surface electrocardiogram QRS axis of small procedures. ECG through the importation of the limb leads QRS wave direction can be derived for-axis direction.

组合式空调机组温湿度远程操作自动控制系统(Siemens 828d CNC PLC program. Axis control and disc support automatic tool exchange device)