实验中通过添加表面活性剂以及采用不同的粒度配比，有效地解决了石油沥青表面润湿性能差和具有较低堆密度的缺点。
Low surface wettability and bulk density of petroleum asphalt are effectively solved by the use of a kind of surfactant and different particles distribution in the experiment.
采用聚光器可提高太阳照射在单位面积上的能量密度，从而克服太阳能分散性的缺点。
Because a concentrator can be used to improve the energy density in a unit area, it can reduce the dispersion of solar energy.
木塑复合发泡材料可以克服一般木塑复合材料诸如密度大、成本高的缺点，同时改善隔音隔热性能。
Foaming wood-plastic composite (WPC) is not only possessing of lower density and cost than general WPC, but also better properties of soundproofing and heat insulation.
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