extraneous matter
英 [ɪkˈstreɪniəs ˈmætə(r)]
美 [ɪkˈstreɪniəs ˈmætər]
外来杂质
双语例句
- Reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities.
使变得精细无杂质或处于纯状态；从异物中分离或使混杂物纯净。 - Effects of Interaction of Calcium-Aluminum on the Adsorption capacity and Active Aluminum in Tea Garden Soil Under Extraneous Source Organic Matter
外源有机质存在下钙铝交互作用对茶园土壤铝的吸附能力与活性的影响 - Sand or some other extraneous matter had got into the butter.
沙子或一些其他不相干的东西已混入牛油中。