flapping hinge
plural of cocktailian
So as to push.
superlative form of willing: most willing
A hinge in the rotor assembly of a helicopter that allows each blade to have some vertical movement
飛行前点検で、整備士はローターの各ブレードに垂直方向の動きを許すヒンジに摩耗がないかを注意深く確認した。
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