single stage bleaching

Some interesting research areas of pulp and paper science and technology proposed by the scientists in USA,including fiber en-gineering,fibrous fillers,single stage bleaching,one-way press and compact integrated recovery system,are introduced in the paper.

简要介绍近来国际造纸专家提出的若干重要前沿研究领域,包括工程纤维的研究与开发、纤维状填料的开发,单段漂白,单向压榨和新型碱回收系统。

Study of the FRC-2 Single-stage Hydrocracking Catalyst Reacting Performance;

FRC-2单段加氢裂化催化剂反应性能的研究

In AutoCAD,we can utilize the speciality of rulesurface to numerically sheet a single pipeline which shape of both sides are different,and realize that the shape and position of both sides are arbitrary.

　利用CAD中直纹曲面的特性对单段管件进行数值放样,使单段异口径管件的放样实现端口的位置任意性和形状任意性。

Based on the characteristic of a short-time non-stationary random signal, the feature of energy distribution of a single deck blast vibration signal is investigated by means of wavelet packet method.

其次,基于MATLAB对单段爆破振动信号进行小波包分析,得到了爆破振动信号在不同频带上的能量分布图。