top feed短语¹⁴⁴⁹⁷²⁺² 基本例句 顶部加料 The bottom feed, needle feed and alternating foot top feed in connection with the high sewing foot stroke ensure an excellent material feed, which is a condition for an impeccable sewing result. 下送布、针送布以及交替压脚上送布再加上超高的压脚冲程保证了良好的送料，以获得完美的缝纫效果。 duroppadler.com