单词	annular packoff
释义	annular packoff 环形封隔
随便看	household duties household duty household dye household economics household economy household economy recovery household education household educational expenditure household eeonomy household effects household electric household electrical appliance house hold electrical appliance household electrical appliance enterprises household electrical appliance industry household electricalappliances household equipment householder matrix householder method householder orthogonalization transformation householder reduction Householder Reflection householder rs comprehensive policy household folding scissors Household food security