带: belt; girdle; ribbon; band; ...保护: protect; defend; guard; safe ...环: ring; hoop的: 4次方是 The fourth power of 2 i ...保护环: guard ring; protection ring; ring of protection带保护层: tape sealer织带保护套: web protector保护环境: conservation; environmental protection; protect environment; protect the environment against pollution; to protect the environment; when people put the environment first, development will last保护环境党: parti pour la protection de l'environnement保护环扩散: guarding diffusion保护环系统: protection ring system电晕保护环: anticorna collar反红保护环: circle of protection: red共享保护环: spring shared protection ring共用保护环: shared protection ring日历保护环: dial guard ring色保护环: [电学] guard ring文件保护环: file protect ring; file protection device; file protection ring写入保护环: write protect ring; write protection ring带护环的螺旋桨: propeller with ring quard操纵带保护布: lift web protector flaps带保护帽潜游: hard hat diving基带保护倒换: baseband protection switching共用保护环，共享保护环: sharedprotectionring保护环境措施: environmental controls
