supplejack

例句：

1. 1. Thesupplejack was used to holdthe fabric together during sewing.
   弹性夹具用于缝纫时固定布料。
2. 2. The engineer designeda supplejack that could adjustto different sizes of clothing.
   工程师设计了一种可调节不同尺寸衣物的弹性夹具。
3. 3.The supplejack was a crucialtool in the construction industry for securing heavymaterials.
   弹性夹具是建筑行业在固定重型材料中的关键工具。