【求助】帮忙看看这个怎么理解？

Notwithstanding article 1, the list (of substance or materials ) may lay down procedures {testing migration of particular constituents of plastic materials and articles [which differ from those (laid down in the annex )]}

主句是：The list may lay down procdures.

修饰materials
(of substance or materials )修饰list

修饰annex
(laid down in the annex ）修饰those
[which differ from those (laid down in the annex )]修饰articles
{testing migration of particular constituents of plastic materials and articles [which differ from those (laid down in the annex )]}修饰procedures

找个翻译软件啊!大概翻译一下,自己就知道了.

翻译如下:
notwithstanding article 1, the list of substance or materials whose use is authorized to the exclusion of all others may lay down procedures testing migration of particular constituents of plastic materials and articles which differ from those laY down in the annex where this is appropriate.
关于物品1,所用到的物质清单或材料已被权威机构认可,则可不需权威机构委托人再细分附件中的不同原料和物品测试,因为它在所有物质清单或材料当中已经被排除,均已符合,可不需测试.
如有翻译不周全,还请大家指教!

多谢斑竹、melu的帮助，终于开始弄明白了。

notwithstanding article 1 : 尽管有条例一的规定

实在不象技术英文。 作者听起来象律师。

这个应该就是法律法规之类文章中的一部分

是欧盟指令85/572/EC，是出口欧盟相关产品要了解的内容。