double-threaded
plural of farrerol
A series of stitches used for reinforcing areas of stress on a garment, such as pocket openings or buttonholes.
Quality of being trenchant.
(engineering) Consisting of two threads twisted together; using two threads.
二本撚りのケーブルは強度試験で重い荷重にも耐え、しっかりと持ちこたえた。
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