梭壳调线弹簧 bobbin case tension spring: 梭匣柄; 梭匣簧bobbin winder tension disc spring: 过线具押线簧robbin case tension spring: 梭匣簧bobbin hook: 梭心夹子bobbin case: 缝纫机的梭壳; 梭匣; 梭心罩下载手机词典可随时随地查词查翻译