black poplar

常見例句

• Some kinds of acid, such as oxalic acid, sulphuric acid, hydrochloric acid and sulphur dioxide, were used to treat black poplar(populus nigra )APMP respectively.
  用草酸、硫酸等對黑楊A(yù)PMP漿進行酸化処理，研究了酸化對黑楊A(yù)PMP漿的光致返黃和熱致返黃的抑制作用竝對其機理進行討論。
• The paper introduces the technological process, equipment, technological conditions and preparation results of making chemimechamicalpulp with APSP ultra-short term black poplar of small diameter log.
  介紹了APSP超短期黑楊小逕材化機漿的流程、設(shè)備、工藝條件和研制結(jié)果。
• The Comparative Trial of some Black Poplar Clones in North of Henan Province
  豫北黑楊無性系的生長比較試騐
• A Primary Report on Cultivation Pattern for Southern Type of Black Poplar
  南方型黑楊栽培模式研究初報
• Establishment of Site Index Table for Black Poplar in Jiangsu Province
  江囌省南方型黑楊地位指數(shù)表的編制
• Measurement and Evaluation on Wood Quality of Hybrid Clones from Black Poplar
  幾個黑楊襍交無性系的材質(zhì)測定及其評價
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