| 英文.... | Extraneous matter, especially of an inferior or contaminating nature, that is mixed with desirable matter. |
| 荷蘭語.... | Een vreemde stof, vooral van minderwaardige kwaliteit of verontreinigend, die met de gewenste stof is gemengd. |
| 西班牙語.... | Materia extraña, especialmente de carácter inferior o contaminante, que se mezcla con un material valioso. |
| 雜質............ | [AS-Academia Sinica] |
| ................. | 朗文當代大辭典 p. 878 |
| ................. | 國家教育研究院-雙語詞彙、學術名詞暨辭書資訊網 August 4, 2009 |
| ................. | 朗文英漢雙解科技大辭典 p. 851 |
| ................. | 化學名詞辭典 p. 97 |
| impurities............ | [VP] |
| ................. | Art and Archaeology Technical Abstracts (1955-) Vol. 2, #847, 23-1613. |
| ................. | CDMARC Subjects: LCSH (1988-) Impurities (Technology) |
| ................. | NASA Thesaurus (1988) |
| ................. | ROOT Thesaurus (1981) plural in source |
| ................. | Random House Dictionary of the English Language (1987) |
| ................. | AATA database (1995-) 124937 checked 26 January 2012 |
| onzuiverheden............ | [Bureau AAT] |
| ................. | AAT-Ned (1994-) |
| onzuiverheid............ | [Bureau AAT] |
| ................. | AAT-Ned (1994-) |
| impureza............ | [CDBP-DIBAM] |
| ................. | Diccionario de términos científicos y técnicos (1981) 2474 |
| Subject:............ | [Bureau AAT] |
| ................. | CDMARC Subjects: LCSH (1988-) Metals--Inclusions; Impurities in metals; Contamination (Technology) |
| ................. | AATA database (1995-) 124937 checked 26 January 2012 |
| ................. | Van Dale Engels-Nederlands (1989) |