black poplar

基本解释

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APMP漿進行酸化処理，研究了酸化對黑楊APMP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、設備、工藝條件和研制結果。
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表的編制