由于这种污染元素的作用在试样露出水面时依然存在，致使潮差暴露也出现类似情况。
For the pollution ions were existed on the specimens when they emerged from seawater, the dealloying corrosion of double phase brass exposed to mean tide zone was also accelerated.
在环境分析中，SFE能够减少试样用量、缩短试样处理时间，且无二次污染。
Applying SFE in the analysis of environment can make reduction of sample dosage, shortening the sample treatment period and no second pollution.
方法快捷、简便易行，无污染，准确度和精密度均能满足试样分析要求。
The results showed that this method is simple, convenient and pollution-free. The accurate and precision can satisfy the needs of analysis.
此方法的特点是试样制备较简单，且避免了污染。
The special features of this method were the simplicity in sample preparation and the avoidance of pollution.
介绍雾的微物理特征及其与大气污染的关系，对污秽和较清洁的多雾地区进行雾试样采集、分析；
This paper introduces the micro physical character for fog and its relation with air pollution. The collection & analysis of fog example are conducted in the polluted and comparably clean foggy area.
研究和分析了国产冷轧低碳钢板试样表面污染物的种类及成分，并且与进口同类钢板进行了比较。
The species and composition of contamination on the surface of cold rolled steel plates were investigated. Comparison between china made and imported cold rolled steel products was carried out.
试样抛光时，最重要是要避免夹杂物的剥落、变形或抛光表面被污染，以便检验而尽可能干净和夹杂物的形态不受影响。
The mosaic approach and fixture method can be applied to fix the sample avoiding the round polished edge and make sure the smoothness of the testing surface.
试样抛光时，最重要是要避免夹杂物的剥落、变形或抛光表面被污染，以便检验而尽可能干净和夹杂物的形态不受影响。
The mosaic approach and fixture method can be applied to fix the sample avoiding the round polished edge and make sure the smoothness of the testing surface.
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