搜元素提供国外优质的免版权矢量素材资源免费下载，该资源的中文名称是：Single line drawing of a helicopter. A type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. Vector illustration for transportation concept，英文名称是：Single line drawing of a helicopter. A type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. Vector illustration for transportation concept，该资源由网友上传，提供高速下载。
