extraneous matter
美英
        - un.外来杂质;异物;外来物
 
extraneous matterextraneous matter
外来杂质
matter ... exogenous organic matter 外源有机物 extraneous matter 外来杂质; 异物 fat matter 【刷】易排印件 ... 
                异物
matter ... exogenous organic matter 外源有机物 extraneous matter 外来杂质; 异物 fat matter 【刷】易排印件 ... 
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