ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

In recent years, industry and application of agricultural unmanned aerial system (UAS) have been expanding rapidly and greatly. However, supporting regulations and standards on agricultural UAS are relatively lagging behind. The crucial standards formulating and implementing organizations and institutions in a global view, along with standards setting goals and basis were systematically reviewed. Agricultural UAS management organization, regulations and standards application in Japan were studied in detail. Current policies and regulations of industrial and agricultural UAS in China were also introduced, along with industry development and local standards. To lead the healthy development of UAS industry in China, regulation and standardization organizations at all levels keeping on UAS standardization work were concentrated on three aspects, including product (quality) standards, technical standards such as sub components and performance tests, operation specifications and personnel training management standards. All agricultural UAS standard construction works were led by Ministry of Agriculture and Rural Affairs, under the framework of Guidelines for Standardization Construction of Unmanned Aerial System. Proposed standards were not confined to plantprotection merely, which also included UAS application standards for fertilization, remote sensing, and auxiliary pollination and so on. Standards covering processes of production, circulation, application, training, registration and certification, should be established to support UAS management. Through scientific formulation and implementation of UAS standards, it would surely further regulate the industry development and drive independent innovation. Competitiveness of the agricultural UAS industry in the domestic and foreign markets would be enhanced.