STEM与日常科技·英语30篇（7）
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How Smart Refrigerators Track Food Expiry
智能冰箱如何追踪食物保质期
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Smart refrigerators use barcode scanners and camera-based image recognition to log food items.
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When you place groceries inside, the system identifies packaging and checks online databases for expiry dates.
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Built-in humidity and temperature sensors monitor storage conditions to estimate shelf life accurately.
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The fridge sends smartphone alerts when milk or yogurt nears expiration.
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Some models suggest recipes based on soon-to-expire ingredients to reduce waste.
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Cloud-connected units learn user habits, like how long cheese typically lasts in that household.
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Voice assistants let users ask, 'What expires tomorrow?' without opening the door.
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LED interior lighting enhances camera clarity for better food identification at night.
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Manual entry options exist for unpackaged items like leftovers or homemade sauces.
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Data privacy settings let users choose whether usage patterns are shared with appliance makers.