The study on dust-retentioneffect of gardening plants in China has already obtained quite a lot of achievements.
我国对园林植物滞尘效应的研究已经取得了相当多的成果。
2
The microparticle could link with pulp fibre through ionic bond and hydrogen bond, from which excellent retentioneffect of copolymer initiated.
这种微粒和纸纤维能够通过离子键和氢键作用，显著地增强助留效果。
3
The main aim of this thesis is to research the transporting regulation and the retentioneffect of N and P for the different dimensions pond wetland system.