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
but I'm happy being a photographer.
但我乐于当一名摄影师。
This kind of article is often bought as a gift, so exquisite and tasteful design is of prime importance.
人们购买这种商品通常用来赠亲友，所以精美高雅的设计至关重要。
If you put on C.O.D., we'll have to go elsewhere.
如果你要C.O.D.的话，我们只有找别家公司。