Point spread function
[计] 点分布函数
🧩 词语组成解析
spread
[sprɛd]
vt.& vi. 伸开;展开;（使）传播;（使）散布;
n. 范围;连续的一段时间;
vt. 涂;把…覆盖在…上(over);把…敲平;散发（气、烟等）;
vi. （景色、景致）展现;传开;（人群）散开;软化;
adj. 张开的;[语言学]双唇展开的;（宝石）扁薄发光的;（文章、照片等）跨两栏（或多栏）的;
🗣️ 情景例句
Who knows?
谁知道？
Someone is working in the manhole.
有人在
During the summer months, the monastery is very busy, for it is visited by thousands of people who cross the Pass in cars.
夏天的几个月里，修道院十分忙碌，因为有成千上万的人驾车通过山口，顺道来修道院参观。