Babbit, Arthur B · New York, H. Holt and company · leaf 177
Fig. 60 … A mixed line is a line composed of straight and curved lines. See Fig. 60.Straight lines are oftencalled simply lines; andcurved lines, curves.Straight lines maj^ be horizontal, vertical or oblique,A line drawn from left to right is termed a hori-zontal line. A horizontalline is shown at A B,Fig.…
Mechanical drawing
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