Methods: A self-made sensing needle was used to measure calcium ion concentrations of Dachangshu (BL25), Ganshu (BLI8) and Guangyuanshu (BL26) and their corresponding non-acupoints in 8 sheep;

• 方法：利用自制的传感针，在体监测8只山羊的大肠俞、肝俞和关元俞及其对应的非穴位点的钙离子浓度；