Last Updated
：2025/11/19
lean
IPA(Pronunciation)
Verb
Japanese Meaning
燃料と空気の混合気中で、燃料供給量を減少させ、空気または酸素の割合を相対的に増加させる、いわゆる混合気を希薄化する行為
（ present singular third-person ）
（ participle present ）
（ participle past ）
（ past ）
Quizzes for review
To thin out (a fuel-air mixture): to reduce the fuel flow into the mixture so that there is more air or oxygen.
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lean
At high altitude, pilots often lean the fuel mixture to maintain optimal combustion.
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At high altitude, pilots often lean the fuel mixture to maintain optimal combustion.
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