Within the restrictions and exceptions of above mentioned European Directive (ROHS).Should,however, any of these substances unexpectedly be detected at a later stage, we will take responsibility and immediate action to eliminate these within a 3weeks time.该如何理解呢，these 在这里又是什么意思呢
热心网友
these substances —— 这些物质，是指那些呢？ 就是 European Directive 里所规定不应有的物质。你上次的问题，就是少了最前面的一句。