SPG has various meanings in the Technology category. Discover the full forms, definitions, and usage contexts of SPG in Technology.
Rope from after part of a vessel led outside and forward to a point of attachment outside vessel By heaving on it ship can be moved ahead Sometimes led to anchor cable, for casting ship's head. Tendency of a vessel's head to come nearer to wind. The opening of a seam. Partial fracture in a mast or spar.
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