Upper triangular matrix
[电] 上三角矩阵
🧩 词语组成解析
upper
['ʌpə]
adj. 地位较高的;上面的;内地的;地表层的;
n. 鞋帮，靴面;兴奋剂;令人兴奋的经历;
🗣️ 情景例句
When they come out, we'll get it.
一出来， 我们就会拿到手。
To manufacture automobiles
生产汽车
Sorry! she said to the shopkeeper. I've forgotten my money!
“对不起！”她对售货员说，“我忘记带钱了！”