fine timber tree species 优良用材树种
main timber tree species 主要用材树种
rare timber-use tree species 珍贵用材树种
fine tree species for timber 优良用材树种
Poplar is the main timber tree species in Chaoyang region.
杨树是朝阳地区的主要用材树种。
Tectona grandis classified as Tectona plant of Verbenaceae is one of the most valuable timber tree species in the world.
柚木为马鞭草科柚木属植物，是世界上最珍贵的用材树种之一。
Some species of tree have been read out of the party by economics-minded forestersbecause they grow too slowly, or have too low a sale vale to pay as timber crops.
有些种类的树木已经被有经济头脑的林农淘汰出局，因为它们生长得太慢，或者作为木材作物的售价太低。
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