protectin[医] 保护素(旧名), 橡皮纸protectv.保护；投保protected offender受保护罪犯protecting ecology保护生态protecting coating保护涂层protectable memory可加保护的存储器protect deficiency保护不足protecting channel保护信道Protecting circuit保护电路protect ice hazard防冰害protectung spatula保护性肠压板protecting forests森林保护