Mainda面达,位于中国西藏自治区mainadj.主要的；最重要的n.干线；总管道；[pl](水、煤、电)供应系统；<古>大海main attack direction主突方向main circulating pump主循环泵main active component主要有效成分main lifting elevator主升运器,挖掘升运器Main-branch library总分馆main deflection angle主偏角main-body education主体性教育main factors analysis主因子分析main controlling node主控节点Main Electronics Unit主要电子装置