这是相当大的一部分，因为可以减少施肥和从动物粪便中滤出的氮。
This is largely because of reductions in fertiliser use and the amount of nitrogen leaching from manure.
这一部分中，我们不仅分析具体的语言现象以及制约语言运用中的相关因素，而且还从动态的过程考察语言使用的规律和特点。
In the part, we do not merely analyze relevant factors in the concrete language phenomenon and restriction elements, and still investigate laws and characteristic that used from the dynamic course.
前期研究的这类疫苗，是从动物细胞产生，在小鼠的人体中进行试验，结果取得了部分成功，然而，疫苗仍然没有商业化。
Previous trials of this kind of vaccine, produced in animal cells and tested in mice and humans, have had mixed success, and the vaccines are not yet commercially available.
应用推荐