black poplar

常见例句

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
Measurement and Evaluation on Wood Quality of Hybrid Clones from Black Poplar
幾個黑楊襍交無性系的材質測定及其評價