资讯

Alaska Beacon4 天
Tongass timber provides good jobs, as well as products of the best quality
Trees from the Tongass provide the music of the world, writes Sarah Dahlstrom-Lehnert in a commentary for the Alaska Beacon.
Nature8 天
Fibre Saturation Point of Wood
Chaplin, New Intl. Assn. of Testing Materials, 1931, Zurich. Wilson, U.S. Dept. of Agr. Bulletin No. 282, March 1932. Unpublished data by F.P.R.L. on Sitka Spruce ...