请问一句话的翻译,谢谢? this is especially important around oxygen compressors where location of expansion joints inside the reducers may place them in areas that need to be constructed of velocity exempt materials. 在氧压机周围管线布置中,尤其重要的是异径管处的膨胀节可放置在有流速限制的构造材料区域内。查看更多