杉木林、未成林、马尾松林水土保持功能中等划分为第三类。

The young forest, fir and pinetum were made up of the third kind.

youdao

杉木林、未成林、马尾松林水土保持功能中等划分为第三类。

The young forest, fir and pinetum were made up of the third kind.

youdao