As NC machines need a large capital investment， we should efficiently use them.。
A.正確
B.錯誤
正確答案：正確
題目：As NC machines need a large capital investment， we should efficiently use them.。
關鍵字：智慧樹
相關試題
1.Machining is the manufacturing in which the workers can remove the excess material of a part on a machine tool.。
2.The feed is defined as the distance the cutting tool projects below the original surface of the work-piece.。
3.（）is the relative lateral movement between the tool and the work-piece.
4.EDM（Electrical Discharge Machining）refers to in Chinese term。
5.Part programmers must have a solid knowledge of machining processes and know a lot of the capabilities of the machine tool.。
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