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：Research and development black glyph icon. Business improvement. Performance management. New products creation. Silhouette symbol on white space. Solid pictogram. Vector isolated illustration，英文名称是：Research and development black glyph icon. Business improvement. Performance management. New products creation. Silhouette symbol on white space. Solid pictogram. Vector isolated illustration，该资源由网友上传，提供高速下载。
