栎属植物中很多树种具有很高的经济价值，但长期以来未能得到合理开发和利用。

Many species of Quercus have high economic value, but they have not been rational exploited in long-term.

youdao

栎树为栎属植物的统称，在我国分布范围很广泛，是具有很高经济价值的树木资源。

Oak, a general designation of oak plant genera, are tree resources of considerable high economic value and widely distributed in China.

youdao

栎属植物的果脐占果皮表面积的4％-37％，是大多数种类吸收水分的主要部分。

The scar, composing 4% to 37% (surface area) of the whole fruit coat, was found to be the main water passage for most species.

youdao