... 天然林更新 natural forest regeneration 自然属natural genera 自然志；博物学 natural history ...
2
?自然层
... 天然气 natural gas 自然层natural genera 自然地理学 natural geography; physical geography ...
双语例句
1
As a matter of fact, the search for natural boundaries to genera has something to do with the evolutionist and is not entirely a matter of convenience.
因此，寻找属的天然界限不是方便与否的问题，它与进化过程有关。
2
We conducted an extensive field survey of current geographic distribution of their natural range, and in situ and ex situ conservation status of the remnant populations of the two genera.