It's a pulsating star that swells and shrinks periodically.

它是一颗脉动的恒星，周期性地收缩。

Two broods of cyclical cicadas will emerge.

两代不同周期性的蝉群将出现。

So the goal is to have no cyclical unemployment.

所以我们的目标是没有周期性失业。

Or it could loop around in a periodic way, like in some video games.

或者它可以进行周期性循环，就像一些游戏一样。

California is riddled with geological fault lines that periodically ruptures the biggest.

加州到处都是周期性断裂的地质断裂带。

El Nino is a periodic warm current in the southern Pacific Ocean.

厄尔尼诺现象是南太平洋的一种周期性暖流。

This one is characterized by the cycles of hypomania and dysthymic or persistent depressive episodes.

其特是周期性的轻度躁狂心境恶劣或持续性抑郁发作。

Botanic Garden Educator Todd Brethauer said the stench occurs in cycles.

植物园教育家托德·布莱豪尔表示恶臭会随周期性而出现。

In Arles, van Gogh also began to experience periodic psychotic episodes.

在阿尔勒，梵高也开始经历周期性的精神病发作。

So we want to take advantage of this periodicity in our alternative manufacturing technique.

所以我们想在我们的替代制造技术中利用这个周期性。

For example, one of the themes in Aeschylus' work is that violence is cyclical.

例如，罗作品的主题之一是暴力是周期性的。

Lemmings periodically commit mass suicide, and no one knows just why!

旅鼠会周期性地进行大规模自杀，但是没人知道究竟是为什么！

Thereafter they enter red blood cells and multiply destroying the cells, causing recurrent fever attacks.

然后进入红细胞并开始繁殖，毁坏细胞，并造成周期性发热。

Not necessarily the very light trend you see here, but trending in periods.

并不必然是你这儿看到的轻微的趋势 可能是周期性的趋势。

Cyclothymia is the third BPD type.

第三种 BPD 类型是周期性精神分裂症。

Periodical cicada mass emergences are one of those once or twice in a lifetime kind of things.

蝉的周期性大规模出现一生中可能只有一到两次。

UNIDENTIFIED MALE: That's something we've seen in very small numbers periodically over the years.

这是我们多年来周期性地看到的一小部分现象。

Periodic surges have occurred ever since and have increased in magnitude and frequency this century.

自那以后，周期性的涌浪一直在发生，本世纪的幅度频率都有所增加。

To continue the species, he said billions of periodical cicadas will appear all at the same time.

劳普表示，为了种族延续，这种周期性的蝉会大批同时出现。

We'll be looking at various, innovative energy efforts periodically, starting with one underway in Scotland.

我们正在周期性地关注能源领域各种创新性的努力，从苏格兰正在进行的一个能源工作开始。