Identity operator
单位算子
🧩 词语组成解析
identity
[ai'dentiti]
n. 身份;[逻]同一性;个性;[数]恒等（式）;
🗣️ 情景例句
His personality left a deep impression on us.
他的人品给我留下了深刻的印象。
I'm an American by birth.
我是土生土长的美国人。
Use the lab and prepare some plant food for young tomatoes.
用实验室为西红柿幼苗准备一些养分。