Quadratic dual problem
[计] 二次对偶问题
🧩 词语组成解析
a. 二次的\\nn. 二次方程式
dual
['dju(:)əl]
adj. 双的，两部分的，二体的，二重的;
n. 双数;双数词;
🗣️ 情景例句
We'll call in a couple of days.
我们两三天后打电话。
I will take a subway.
我将去搭地铁。
'He had travelled only seven miles across the Channel when his engine failed and he was forced to land on sea.
但他只在海峡上空飞行7英里，引擎就发生了故障，他只好降落在海面上。