Your brain will show the large slow waves that are known as the delta rhythm.

你的大脑会显示大型慢波这被称为三角洲节奏。

Your brain will show the large slow waves that are known as the delta rhythm. This is stage 4 sleep.

大脑将处于称为德尔塔节律的最慢波频，这就是第四睡眠期。

Residual oil distribution is complicated in the thick reverse rhythm reservoir in the delta front of Shengtuo oilfield in late waterflooding stage.

注水开发后期胜坨油田三角洲前缘反韵律厚油层剩余油分布复杂。