中国是北韩最重要的援助和必需品的供应国.China is North Korea's most important supplier of aid and essential goods.伊朗取代阿曼成为中国进口原油的最大供应国.Iran replaced Oman as the largest crude supplier.专家指出,澳大利亚是世界上众多小麦供应国中的一员.Expers note that Austrilia...
This paper shows the test results of certain celestine ore.论述了某天青石矿浮选试验研究结果.The main useful mineral is celestine.矿石组构虽然复杂,但其矿物组成比较简单,有用矿物主要为天青石.Celestine Babayaro is suspended from the Newcastle side.纽卡斯尔方,巴巴亚罗停赛....
生态景观制图是专题制图学的重要发展方向之一.Ecological landscape mapping is one of the fields of thematic mapping.在此基础上提出了地图制图学分支学科的划分问题.Based on thiseognition, the authors suggest a division of branches of cartography.在计算机制图学中, 虚空间的预先定义部分.In...