单词	bull cracks
释义	bull cracks 裂纹
随便看	building economy energy building economy index building economy norm building education law building efficiency building electric building electrical design building electrical energy saving building electrical engineering building electrical system building electrical systems drawing building electric design Building electrician building electricity building electrics building electronic information system building element building element, bar-shaped building elements building elementsstructural elements building elementstructural element building elevation building elevation design building elongating building enclosure