Mn Lakefinder Lake Depth Maps Wells 66001000 Minnesota Dnr

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转矩m n.m 与 n.m转换关系是：1n.m=1000mn.m 100cnm=100n*1cm=1nm；t=转矩（mn.m, cn.m, n.m ）； f=施加的切向力（n）；l=切向力与轴垂直距离（cm）； t= f * l，所.

Minnesota Dnr Lake Finder