常见例句With two straight needles,self-lubricated vertical-axis rotating hook for catching thread looops and sliding cam thread take-up,the machine can producetwo lines of lockstitch.本機採用雙直針，立式自動加油鏇梭勾線，滑杆挑線，搆成二行雙線鎖式線跡。 返回 two-wire