桁

(1)a degree in a continuum of size or quantity; "it was on the order of a mile"; "an explosion of a low order of magnitude"

(2)大きさや量の連続体における程度

(3)a horizontal beam that extends across something

(4)何かを横切って伸びる水平の材

(5)a number assigned to the ratio of two quantities; two quantities are of the same order of magnitude if one is less than 10 times as large as the other; the number of magnitudes that the quantities differ is specified to within a power of 10

(6)2つの量の比率を表す数

(7)一方がもう一方を10倍した数より小さいとき、2つの量は桁が同じである

(8)2つの量の等級差は10の累乗で記される