Roas n. 罗阿斯(匈奴王)
- Cards issued by ROAs in accordance with this Recommendation conform to the appropriate ISO Standards.
主管部门根据本建议发行的卡符合相应的ISO标准。 - This paper discusses the paints' chemical principle, producing processes,application features and properties when used for roas and other transportation facilities.
介绍了改性反光道路标志涂料的反应原理,制造工艺以及在道路与其它交通设施中的施工要点及特性。
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