Extensional fold is an important component part of tectonic deformation in tensional basins,which distributes widely,and mostly belongs to normal fault-related folds.
伸展褶皱是张性盆地区构造变形的重要组成部分,其分布相当普遍,多属于与正断层相关的褶皱。
Effects of white water treatement on the paper properties of mechanical pulp;
白水处理对机械浆纸张性能的影响效果
The change of fibre morphology, fibre length and the influence to sheet properties was studied.
采用3%～4%的低浓度疏解和两段6%～7%的较高浓度磨浆处理麦草半化学浆,研究了纤维形态、纤维长度的变化和对纸张性能的影响。