poplar

• Studies on intercropping benefit of poplar and grain
  杨粮间作系统小气候研究
• There were a few lordly poplars before the house
  有一排白杨像贵族一样矗立在房子前。
• A preliminary shudy on poplar - wheat intercropping patterns
  杨树人工林林麦间作研究初报
• Research on tissue culture of chinese white poplar dominant tree
  毛白杨优株的组织培养
• The poplars stand upright in the field of the north
  白杨树笔直地挺立在北方的旷野上
• Electrochemical bleaching of poplar pulp
  杨木硫酸盐化学浆电化学漂白的研究
• I eulogize the tall and straight trunk of the white poplar
  我赞美白杨树那挺拔的株干。
• Hardwood round timber - qualitative classification - poplar
  硬木圆木料.质量分级.白杨木
• Project of poplar pulp paper of 100 , 000 t y
  年产10万吨杨木制浆优质印刷纸