dual.

• abbr. =dynamic universal assembly language 动态通用组合语言

英英释义

形容词 dual:

1. consisting of or involving two parts or components usually in pairs

2. having more than one decidedly dissimilar aspects or qualities- R.W.Emerson-Frederick Harrison

3. a grammatical number category referring to two items or units as opposed to one item (singular) or more than two items (plural)