poplarn.白杨;白杨木
poplar hybridization clones白杨派杂种无性系
poplar oriented strandboard杨木定向刨花板
Poplar-agroforestry system杨农复合系统
poplar-straw laminated beam杨木-秸秆层合梁
Poplar-brich natural forests杨桦林
Poplar - birch natural forest天然杨桦林
Poplar and willow youth picture杨柳青年画
poplar leftover and mulberry branch杨木边角材-桑枝
Poplars predominate the woods here.这里的树林中最多的是杨树。