corkscrewing
present participle of corkscrew
A surname.
plural of quadropoly
(engineering) An open spanner (wrench) to tighten fragile nuts, such as flare nuts, not accessible to a ring spanner (box end wrench) or box spanner (tube spanner).
モーターが故障した後、ドローンはらせん状に地面に向かって落ち続け、操縦者は青ざめた。
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