主要目的是确定不同的漂白方法对硫酸盐针叶木浆纤维表面特性的影响，包括老化前和老化后。

The aim of this study was to determine the influence of different bleaching sequences on the fibre surface properties of softwood kraft pulp before and after ageing.

youdao

主要目的是确定不同的漂白方法对硫酸盐针叶木浆纤维表面特性的影响，包括老化前和老化后。通过测量水中的动态接触角(D CA)和浆中纤维的电子光谱来检测。

The aim of this study was to determine the influence of different bleaching sequences on the fibre surface properties of softwood kraft pulp before and after ageing.

youdao

而且——身处迅速老化的世界——我们和三、五、十年前一样，还没有一点头绪想出办法来给正在老化的美国人口筹措资金。

And we don't have any more of an idea how we're going to finance the aging of the U.S. population — in a rapidly aging world — than we did three or five or 10 years ago.

youdao