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、硫酸等对黑杨APMP浆进行酸化处理，研究了酸化对黑杨APMP浆的光致返黄和热致返黄的抑制作用并对其机理进行讨论。
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.
介绍了APSP超短期黑杨小径材化机浆的流程、设备、工艺条件和研制结果。
The Comparative Trial of some Black Poplar Clones in North of Henan Province
豫北黑杨无性系的生长比较试验
A Primary Report on Cultivation Pattern for Southern Type of Black Poplar
南方型黑杨栽培模式研究初报
Establishment of Site Index Table for Black Poplar in Jiangsu Province
江苏省南方型黑杨地位指数表的编制
Measurement and Evaluation on Wood Quality of Hybrid Clones from Black Poplar
几个黑杨杂交无性系的材质测定及其评价