The stress and strain on a tensile structure plane and its relationship to principal stresses are studied based on the elastic theory.
依据弹性理论分析了张性结构面的应力、应变与两向主应力的对应关系。
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。