简约黑白剪影风工业工人操作数控机床车床铣床等机械设

minimalist industrial icons, black and white color scheme, 12 independent industrial production scenes, adult workers operating machinery, static working postures, focused operation, interaction between workers and machinery, mechanical equipment and production lines, evenly distributed, industrial atmosphere, orderly and efficient, no decorative elements, no text, pure white background, clear and intuitive, conveying industrial production and automation information