physical and chemical degradation的意思|示意

It may be concluded that principal reactions between the hydrazine fuels and clay are physical absorption and chemical degradation.

肼类燃料在土壤环境中与粘土的作用最强，主要存在着物理吸附与化学降解两个方面。

Globally, soil erosion, chemical deterioration and physical degradation are the important forms amongst various types of soil degradation.

土壤侵蚀、化学退化、物理退化是全球范围内最主要的退化形式。

In this paper, the advances in research of chemical degradation, physical degradation and biodegradation were discussed.

本文介绍并评述了化学降解、物理降解和生物降解等壳聚糖降解方法的研究进展。

The results indicated that the degradation process by the constructed wetlands was the synergistic effects of physical, chemical, and biological processes.

人工湿地对污染物的降解是由物理、化学和生物及其协同作用的过程。

As awareness of environmental degradation has increased, so has the realization of the complexity of interconnected webs of relationships among organisms and the physical and chemical environment.

随着对日益恶化的环境的关注，人们也认识到了有机体与物化环境之间那种相互联系又错综复杂的关系。

In this paper, we studied physical and chemical properties about red currant pigment. The results showed : the thermal degradation of red currant pigment was very low;

本试验研究了红穗醋栗色素的理化性质，结果表明：红穗醋栗色素热稳定性很好，而光照对其有一定的降解作用。