The water sample contained an unexpected impurity affecting the results.
水样中含有意想不到的杂质，影响了结果。
Removing the impurity from the metal improved its quality significantly.
去除金属中的杂质显著提高了其质量。
The scientist analyzed the impurity found in the chemical compound.
科学家分析了化合物中发现的杂质。
They discovered an impurity in the otherwise pure gold bar.
他们在原本纯净的金条中发现了杂质。
The presence of impurity can alter the properties of a substance.
杂质的存在会改变物质的性质。
The air filter removes impurity to ensure clean air circulation.
空气过滤器去除杂质以确保空气清洁流通。
An impurity in the solution caused the experiment to fail.
溶液中的杂质导致实验失败。
Detecting impurity levels is crucial for pharmaceutical production.
检测杂质水平对药品生产至关重要。
The team worked to identify the impurity in the water supply.
团队努力识别供水中的杂质。
After purification, the impurity was reduced to a negligible amount.
净化后，杂质被减少到可忽略不计的量。
impurity level
杂质水平
trace impurity
微量杂质
chemical impurity
化学杂质
impurity concentration
杂质浓度
impurity removal
杂质去除
impurity content
杂质含量
impurity profile
杂质分布
复数: impurities;
