通过实地调查与分析，发现了我国公路平面交叉口存在的主要交通安全问题，并给出了相应的安全改善对策。
Main traffic safety problems at highway intersections are found by field survey and analyses, and the corresponding countermeasures are given.
结果发现，主要成分为聚乙烯蜡的脱气剂MPP230与MPP620可以明显改善热浸镀锌件涂装存在的问题。
Results showed that the coating problem of hot-dip zinc plating workpiece was improved evidently by using the degassing agents MPP230 and MPP620 containing a primary component of polyethylene wax.
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