an element that is the ultimatefactor believed to be the root of everything
元素という,万物の根源をなす究極的要素 - EDR日英対訳辞書
a value which is calculated by dividing the ultimate strength of a material by the allowable stress named a safety factor 安全率という,材料の極限の強さを許容応力で除した値 - EDR日英対訳辞書
In other words, the proximity of the ultimate decision-making authority to the workplace is thought to be one factor that allows an enterprise to respond more flexibly to its employees’ needs. つまり、最終決定権者が現場に近いことが、柔軟な対応を可能にしている要因の1つとなっていると考えられる。 - 経済産業省