The bulk density and specific gravity of surface soil in P. massoniana forest land was largest, followed by bush forest land, that of natural evergreen broad-leaved forest land was smallest.是什么意思_The bulk density and specific gravity of surface soil in P. massoniana forest land was largest, followed by bush forest land, that of natural evergreen broad-leaved forest land was smallest.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句