If price is a snapshot, a moving average is a composite photograph.

如果价格是快照，那么均线就是合成的快照。

youdao

I find it amazing that it's a composite photograph and that it has no funky color processing at all.

我感到惊奇，它是一个综合的照片和它没有时髦彩色处理的。

youdao

The first permanent colour photograph was taken by Thomas Sutton who was working with Clerk Maxwell and is a composite of three black and white pictures, each one taken through a red, green or blue filter.

BBC: Pioneering colour photography