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单词 major diameter
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major diameter
major diameter n. Engineering the outer or larger diameter of an object, esp. a screw thread.
ΚΠ
1924 J. A. Moyer et al. in L. S. Marks Mech. Engin. Handbk. (ed. 2) xv. 1853 The maximum and minimum major and minor diameters are the same for all screws of a given size for all classes of fit.
1951 Engineering 21 Sept. 369/3 A screw thread has..seven elements of shape and size: major diameter, minor diameter, effective diameter, pitch, flank angles, [etc.].
1991 Metalworking Production Sept. (Quality Suppl.) q7/2 Sized 0.001in below bottom limit, the gauge is aligned with a slight shake to measure major diameter across two points.
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更新时间:2024/12/23 8:44:55