不純物が入り込むのを防ぐ必要がある。
It is necessary to prevent impurities from getting in.
Listen to pronunciation
Handwriting
Example sentences
This water contains impurities.
液体から不純物を取り除く。
Remove impurities from the liquid.
試験管の底に不純物が沈殿している。
Impurities are settling at the bottom of the test tube.
Usage Notes
Refers to undesirable substances mixed in with a main material. Often used in scientific or industrial contexts.
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