应用这些分析结果，不仅可使新的有色聚乙烯涂覆钢管在恶劣腐蚀环境介质情况下具有高的耐腐蚀性，而且有长的耐气候性。
The new color polyethylene coated steel pipe developed by applying this analysis has corrosion resistance in severe corrosion environments as well as long weatherability.
石炭酸：最简单的酚类有机化合物。为无色液体，芳香味温和并带甜味，而且具有强毒性和强腐蚀性。
Carbolic acid( or phenol ):Organic compound, simplest member of the class of phenols. A colourless liquid with a Bland, sweetish odour, it is toxic and caustic.
由于改进了结构，可在高温、高压，腐蚀性介质中应用，而且具有工艺简单、寿命长的优点。
The improved structure makes the said expansion joint capable of being used in high-temp, high-pressure and corrosive medium.
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