表面保护抗原A
surface protective antigen A
高抗保护
High voltage reactor relay
高频保护抗干扰
high frequency protection against disturbance
后备阻抗保护
backup impedance protection
距离保护与阻抗保护
distance protection and impedance protection
抗A、抗B血型定型试剂（单克隆抗体）
Anti-A and Anti-B Blood Grouping Reagents (Monoclonal Antibody
抗A、抗B血型定型试剂（人血清）
Anti-A and Anti-B Blood Grouping Reagents (Human sera
抗高温保护剂
High temperature stabilizer
抗热保护剂
hat resistant pretectants
Heat-protective agents
抗湿热保护剂
the damp and hot resistant protectors
数字阻抗保护
digital impedance relaying