bobbin thread lower thread的意思|示意
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筒管螺纹下螺纹
bobbin thread lower thread的网络常见释义
缝纫底线 ... the paper 媒体先锋; 抢闸报社; 抢闸新闻眼 bobbin thread lower thread 缝纫底线 flaxen thread; linen thread 麻线 ...