efficient extraction meaning in Chinese

有效提取
有效萃取

Along with the widely using of remote sensing technology in civil and military fields , such as resource reconnoitering , the gps , recognition of airports and naval ports , the efficient extraction and recognition of the remote sensing image objects has been attached great importance to , which is very important for the application of remote sensing images as well as for the development of remote sensing technology itself
随着遥感技术在资源勘探、全球定位系统等民用领域以及机场、港口目标识别等军事领域的广泛应用，对遥感影像目标的有效提取与识别手段逐渐受到了人们的重视，这对遥感影像的应用以及遥感技术本身的发展都很重要。