un. 操作者左右手程序圖 right and left-hand chart: 左右手程序圖on the left／right（hand side）: 在左right and left hand core: 左右對(duì)移泥芯right and left hand welding: 左右熔接right-and-left-hand core: 左右對(duì)稱泥芯下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
