1、
最后讨论了氢浓度和其它杂质对氢的扩散系数的影响.
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2、
Before injecting the inert gas impurities in the oil should be removed by filtering.
希望的是在注入惰性气体之前把油过滤以除去此油中的杂质.
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3、
With the Solubility Parameter(δ) Choos Solvent to Eliminate the Impurities from Industrial Acetylene
应用溶解度参数（δ）选择清除工业乙炔中杂质的溶剂
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4、
Anionchromatographic procedure is described for the determination of impurities in tripolyphosphate.
研究了离子色谱法检测食品添加剂三聚磷酸盐中杂质含量的分析方法.
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5、
The impurities in the original cider became sharply visible after distillation.
原先苹果酒里的杂质在蒸馏后变得清晰可见。
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