The graph showing the relation between the oil amount and the work load is prepared, the oil amount-work load chart 49 and the allowable work load 45 are plotted on it, and an allowable oil amount 53 is provided from the intersection therebetween. 次に、オイル量と仕事量の関係を示すグラフを作成し、これにオイル量−仕事量線図49と許容限度仕事量45をプロットし、両者の交点から許容限度オイル量53を求める。 - 特許庁