名词
中文翻译：Unknown
同义词：
['螺纹芯，螺纹心，螺纹杆例句：1. The threaded mandrel is used to hold the fabric together during sewing.（螺纹芯棒用于在缝纫过程中固定布料。）2. The machine uses a threaded mandrel to pull the material through.（这台机器使用螺纹芯棒将材料拉过。）3. The threaded mandrel was inserted into the hole before starting the stitching.（在开始缝制之前，将螺纹芯棒插入孔中。）']
例句：
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1. The threaded mandrel is used to hold the fabric together during sewing.
螺纹芯棒用于在缝纫过程中固定布料。
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2. The machine uses a threaded mandrel to pull the material through.
这台机器使用螺纹芯棒将材料拉过。
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3. The threaded mandrel was inserted into the hole before starting the stitching.
在开始缝制之前，将螺纹芯棒插入孔中。