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.該如何理解呢，these 在這里又是什么意思呢

熱心網(wǎng)友

these substances —— 這些物質(zhì)，是指那些呢？ 就是 European Directive 里所規(guī)定不應有的物質(zhì)。你上次的問題，就是少了最前面的一句。