The gradual drying of the soil caused by its diminished ability to absorb water results in the further loss of vegetation, so that a cycle of progressive surface deterioration is established.
土壤吸收水分的能力减弱使土壤逐渐变得干燥，导致植被进一步减少，从而建立了一个渐进的地表退化循环。
Using scanning electron microscope observation comparison carbonization boride cermet processing surface elastic performance and processing surface deterioration level.
利用扫描电镜观察、比较碳化硼陶瓷加工表面弹性性能及加工表面变质层。
The Nanning Urban Environment Project will assist Nanning Municipality in Guangxi Zhuang Autonomous Region to stop the deterioration of surface water quality in selected urban centers.
南宁城市环境项目将协助广西壮族自治区南宁市遏止部分中心城区地表水质进一步恶化趋势。
Failure: Pitting, cratering, or erosion of the surface. Obvious and significant deterioration.
失败：表面出现斑痕、凹或侵蚀，明显且重要的材料损毁。
Thence it leads to the deterioration of the surface ecological environment, in as much as the increasing tendency of the desertification of the land.
进而导致地表生态环境恶化，甚至出现土地沙化加剧的趋势。
Measures experimentally the inner surface corrosion rate of carbon steel pipeline during operation and suspending period respectively, and points out the deterioration degree.
通过试验对集中供暖系统在运行状态和停暖状态下主管道碳钢内表面腐蚀速率分别进行了测定，并指出了危害程度。
Provided is a method for manufacturing a surface acoustic wave device by which deterioration of electrical characteristics is reduced and the number of manufacturing steps is reduced.
本发明提供一种弹性表面波装置的制造方法，能够降低电气特性的劣化，减少制造工序的工数。
Provided is a method for manufacturing a surface acoustic wave device by which deterioration of electrical characteristics is reduced and the number of manufacturing steps is reduced.
本发明提供一种弹性表面波装置的制造方法，能够降低电气特性的劣化，减少制造工序的工数。
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