1)center to face (C-F),中心至面2)center to end (C-E),中心至端面3)center to center (C-C),中心至中心，中至中4)cervicale to center front at waist,颈至腰部前中心5)peripherally inserted central catheters,经外周至中心静脉插管6)BA Bumper to Center Line of the Front Axle,保险杠至前轴中心距离
用法例句
Objective To determine the advantages and disadvantages of peripherally inserted central catheters (PICC) and femoral venous catheters (FVC) in the treatment of respiratory diseases.