短語詞組短語protected d space 受保護空間protected object space 受保護對象空間free and protected space 自由和受保護的空間un -sealed degree of protected space 防護區(qū)不密封度space protected by foam 有泡沫保護的區(qū)域space protected by sprinkler 有灑水噴頭保護的區(qū)域space protected by drenching system 有水帶系統(tǒng)保護的區(qū)域 返回 protected space