In fruit mature period, muskmelon had higher biomass in organic production system, but there was no significant difference on market yield in both systems.

果实成熟期，甜瓜在有机生产体系中生物量较高，但两种体系的市场产量差异不显著。

The 19th century is a mature period of educational theory in the western history.

在西方教育思想史上，19世纪是西方近代教育理论趋于成熟的时期。

A person's youth period after a, can appear as beautiful as autumn the mature period.

一个人的青春时期一过，就会出现像秋天一样优美的成熟时期。