confined

adj.被限制的；狭窄的；在分娩中的

动词confine的过去式和过去分词.

Confined waves have definite frequencies. 被限制的波具有确定的频率。

Here the river is confined in a narrow channel. 这条河在这里流入狭窄的河床。

In addition, it suggested that the genetic germplasms for sugarbeet breeding were very confined. 从分子水平上进一步证明了我国掩甜菜育种中存在的遗传材料基础狭窄的问题。