oxidizing flame
simple past tense of downdraw
(chemistry) The part of a flame that has an excess of oxygen and is capable of oxidizing something that it is in contact with
simple past tense and past participle of fess up
In an umbral or shadowy manner.
ステンレス鋼をはんだ付けするときは、接合部を酸化性の炎にさらさないようにして、過度の酸化を防いでください。
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