季节性的

The town relies on the seasonal tourist industry for jobs.

这个城镇全靠的旅游业提供就业机会。

Tree rings and seasonal sedimentary deposits called varves can be counted to determine absolute age.

可以对树木的年轮被称为纹泥的沉积物进行计数来确定其绝对年龄。

The testes,ovarium and reproductive tube of adult treeshrew in its morphology and weight have marked seasonal changes.

成年树的睾丸、卵巢生殖管道的形态及重量有明显的变化。

Since it always was a seasonal cycle, and the ascendency followed this behavior, we averaged the ascendency over 365 successive days (duration of one year) in the oscillatory phase.

因为它始个的周期，并遵循了这行为的优势，我们的优势均超过365连续几天（为期年）的振荡阶段。