Prompt : a detailed technical design sketch of a colossal marine diesel engine used on an ocean-going cargo ship, drawn in precise industrial drafting and pencil sketch style, black ink fine lines on a clean white background, showing the enormous engine block, pistons, cylinders, turbocharger, exhaust manifold, and control units. include a human engineer figure standing beside the machine for scale reference, the person appears small, emphasizing the engine’s immense size and power, wearing a safety helmet and work uniform, drawn in light pencil outline for contrast. add cross-section details revealing crankshaft, pistons, connecting rods, and internal fuel system, with handwritten annotations, measurement arrows, and mechanical symbols, minor shading and hatching on metallic parts to show volume and texture, paper texture visible, giving a tactile technical sketch feeling…摘要：Prompt : a detailed technical design sketch of a colossal marine diesel engine used on an ocean-going cargo ship, drawn in precise
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来源：扁豆焖面条
