protective-[医] 保护疗法protectiveadj.保护的；防卫的protective antigens保护性抗原protective removing保护性拆除protective building保护性建筑protective necrosis护田林带protective resistor保护电阻,保护电阻器protective coveringn.防护罩；防护涂层；防护层；护面protective articles防护用品protective response保护性反应protective garments防护服装protective planning保护规划