常見例句雙語例句Properly thread the bobbin case.重新正確地穿梭殼的線。A new take-up device is adopted to re-shape the rotating hook shaft, the hook point and the bobbin case.旋梭軸肩、梭尖以及旋梭套的形狀有所改變;采用了一種新的挑線裝置。 返回 bobbin case