問題詳情
16.一公制螺紋上標註"M60 × 2"係表示
(A)外徑60mm，第二級配合
(B)節徑60mm，螺距2mm
(C)外徑60mm，螺距2mm
(D)節徑60mm，第二級配合。
(A)外徑60mm，第二級配合
(B)節徑60mm，螺距2mm
(C)外徑60mm，螺距2mm
(D)節徑60mm，第二級配合。
參考答案
無參考答案
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