Mainousn.梅努斯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 water supplying strata主要供水层mainbody of policy decision决策主体main transformer protection主变保护main transmission mechanism主传动部件main body inner inspiration主体内在性main input into agriculture农业主要投资main exhauster of sintering烧结主抽风机main products of steel pipe钢管主要产品main body of administration行政主体main body of financial idea财务理念的主体