Acme
A 29° trapezoidal threading used for various fittings and adapters.
Of great hardness; petrous. / (anatomy, relational) Of, pertaining to, or located near the petrous part of the temporal bone or the capsule of the inner ear.
A rack used for ribs (as meat)
simple past tense of settle up
組み立て前に、技術者は適切なシールを確保するために29度の台形ねじの摩耗を点検した。
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