本文研究了煤焦油瓷漆逸散物（CTEV）的致突变性。
The mutagenicity of Coal Tar Enamel Volatiles (CTEV)was studied.
本文正是为了解决这些问题而进一步开展了对煤焦油瓷漆的研究。
To solve these problems, this article studies the performance of coal-tar enamel.
试验数据证明，煤焦油瓷漆是一种可满足现代环保要求并广泛应用于油气水管道的防腐材料。
It is proved that coal tar enamel is protection material which can meet the requirements of modern environmental protection, and continues to be widely used in oil, gas and water pipeline.
煤焦油瓷漆具有优良的物理化学性能和稳定的防腐性能，而且原料来源广，价格低廉，近生来又开始在我国管道防腐中应用。
Coal tar coating has been used as the material for corrosion prevention for its good stable physical and chemical properties which has a large range of raw material resource and low price.
埋地钢管的外防腐可采用沥青防腐层、煤焦油瓷漆防腐层、聚乙烯胶粘带防腐层、熔结环氧粉末防腐层、二层结构聚乙烯防腐层、三层结构聚烯烃防腐层等技术。
Asphalt, coal tar enamel, fusion-bonded epoxy, polyethylene tape, 2-layer PE and 3-layer PE coatings may be used for corrosion control of underground pipelines.
埋地钢管的外防腐可采用沥青防腐层、煤焦油瓷漆防腐层、聚乙烯胶粘带防腐层、熔结环氧粉末防腐层、二层结构聚乙烯防腐层、三层结构聚烯烃防腐层等技术。
Asphalt, coal tar enamel, fusion-bonded epoxy, polyethylene tape, 2-layer PE and 3-layer PE coatings may be used for corrosion control of underground pipelines.
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