Dirac delta function
[计] 迪拉克δ函数
🧩 词语组成解析
[计] 迪拉克的
delta
['deltə]
n. 希腊语字母表第四字母δ;（河流的）三角洲;[数]变量增量;
🗣️ 情景例句
What do you think the surprise will be?
你想会是什么样的意外惊喜？
The used key is always bright.
常用的钥匙总是光亮的。
These objects, however, were different.
这些展品却使人大开眼界。