这个词是什么意思？
Discarded electronic devices containing valuable and sometimes hazardous materials such as LEAD, NICKEL, CADMIUM, and MERCURY. (from http://www.epa.gov/osw/conserve/materials/ecycling/faq.htm#impact accessed 4/25/2010)
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D059029 · MeSH 2026。
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