black poplar

常見(jiàn)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(duì)黑楊A(yù)PMP漿進(jìn)行酸化處理，研究了酸化對(duì)黑楊A(yù)PMP漿的光致返黃和熱致返黃的抑制作用并對(duì)其機(jī)理進(jìn)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超短期黑楊小徑材化機(jī)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(wú)性系的生長(zhǎng)比較試驗(yàn)
• 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(bào)
• Establishment of Site Index Table for Black Poplar in Jiangsu Province
  江蘇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(gè)黑楊雜交無(wú)性系的材質(zhì)測(cè)定及其評(píng)價(jià)
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