surface contamination

基本解釋

The results showed the surface contamination produced in sample preparation and treatment can be eliminated if the sample was sputtered for enough time.
實驗表明：樣品經足夠長時間的濺射，可以消除樣品制備和處理過程中的表面污染，可以為其它高純材料的檢測提供可靠的科學依據(jù)。
A three layer of aluminum exposed to atmosphere is identified: the aluminum and its native oxide, the corrosion layer atop oxide aluminum, and a surface contamination layer.
暴露于大氣中的鋁表面呈現(xiàn)三層結構，即氧化鋁和氫氧化鋁層、其上的腐蝕產物層和最上層的污染物沉積形成的污染物層。
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However, investigation shows that the leakage current is affected not only by the surface contamination of insulator but also by the environmental factors such as temperature, humidity, and so on.
研究表明，泄漏電流除了與絕緣子表面的污穢狀況有關外，還受溫度、濕度等環(huán)境因素影響，并且與各因素之間存在復雜的非線性關系。

And what prevents soil and surface water contamination from countless units that ultimately wind up in landfills?
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In Washtenaw County and Ann Arbor, Michigan a 1, 4-Dioxane, in groundwater and surface soil contamination from Gelman Science, persists after nearly 20 years of cleanup activities and has now spread in groundwater to an area over three miles long and a mile wide.
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The remaining soil contamination is located several feet below uncontaminated surface soil.
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