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BRAD: a thin, wire nail; sometimes peened on one end.
曲头钉：一种细金属钉；有时候一端是平头的。
youdao
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On back of board, nail in ring hangers and tie on hanging wire.
木板背后钉入三角环悬挂架，用不锈钢吊索固定。
youdao
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On back of board, nail in ring hangers and tie on hanging wire.
木板背后钉入三角环悬挂架，用不锈钢吊索固定。
youdao