Universal decimal classification - English full edition - working, machining with chip formation - cutting, grinding, sheet working etc.
国际十进分类法。全英文版。切屑成形机械加工。切削磨削钣金加工等。
The different standards and methods for space object classification are discussed, and a novel classification method for satellite based on the Universal Decimal Classification (UDC) is proposed;
研究探讨了空间目标分类的标准和技术方法，并基于国际十进分类法（uDC）尝试提出了人造卫星的分类方法；
应用推荐