英语词汇“protection ring system”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	protection ring system
释义	protection ring system 保护环系统
随便看	low velocity zone low-velocity zone low-velocity zone (lvz) low vertical photograph low VHF transmitter receiver low video indication Lowville low virulent strain low-viscosities low viscosity low-viscosity low viscosity fuel oil low-viscosity layer low-viscosity liquid low-viscosity monomer low-viscosity oil low viscosity rubber low viscous low viscous flow low visibility low-visibility low visibility operations low-vision low vision low-voc S齐天乐·中秋宿真定驿 S齐天乐·客长安赋 S齐天乐·泽国楼偶赋 S齐天乐·白发 S齐天乐·蝉 S齐天乐·蝉 S齐天乐·蝉 S齐天乐萤 S齐天乐蝉 S齐州送祖三平手平手儿平抑平拉开扣球平挺平推平摊平放平整平方