Last Updated：2025/11/19
Sentence
実験を始める前に、技術者たちは上層大気の条件を再現するために気体を希薄化する。
Quizzes for review
Before running the experiment, engineers rarefy the gas to mimic upper-atmosphere conditions.
See correct answer
Before running the experiment, engineers rarefy the gas to mimic upper-atmosphere conditions.
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Related words
rarefy
Related Words
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（ participle present ）
（ participle past ）
（ past ）
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