| 单词 | 不纯净 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔PURE〕The last sample was impure and quite useless for manufacturing purposes. 上一份样品不纯净，对于生产来说没有多大用处。朗文写作活用〔contaminate〕To make impure or unclean by contact or mixture.污染：通过接触或混合使…不纯净或不洁净美国传统〔dirty〕These adjectives apply to what is unclean, impure, or unkempt.这些形容词都用于指不干净、不纯净或邋遢的东西。美国传统〔impurity〕Something that renders something else impure; an inferior component or additive.混杂物；粗劣品：一些使得别的物质不纯净的物质；劣等的成分或附加物美国传统〔pearl ash〕An impure form of potassium carbonate.珍珠灰：一种不纯净的碳酸钾制品美国传统〔puddle〕To process (impure metal) by puddling.通过搅炼对（不纯净的金属）进行加工美国传统〔puddling〕Purification of impure metal, especially pig iron, by heating and stirring in an oxidizing atmosphere.搅炼：尤指将生铁等不纯净的金属在氧化环境中加热并搅动将其炼纯美国传统〔regulus〕A relatively impure intermediate product of various ores in smelting.金属渣：相对不纯净的各种矿石在熔化过程中的中介产品美国传统 |
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