詞組搭配

direct summand直接被加數(shù)

erster Summand被加數(shù)

augend summand被加數(shù)

type direct summandtype直和

local direct summand局部直和因子

direct summand of module模的直和項(xiàng)

indecomposable direct summand不可分直和項(xiàng)

maximal direct summand of module模的極大直和項(xiàng)