短语词组短语frangible sprinkler 易熔元件洒水喷头frangible a 脆的frangible coupling 易卸接头;易分离耦合;截断连接Frangible object 断性物体frangible canopy 易碎玻璃座舱盖frangible disc 安全隔膜;安全片frangible bulb 易碎玻璃球frangible panel 易碎板frangible diaphragm 易碎隔膜 返回 frangible