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冷與熱

顯示所有 7 個結果

熱脹冷縮演示器 Thermal expansion and contraction Demonstrator
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熱傳導演示器 Heat conduction demonstrator
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熱的傳導實驗材料 Heat conduction kit Thermal conduction
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實驗用紅水溫度計 0-100° Red Spirit-Filled Precision Thermometer 30cm
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半導體電子製冷片
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高精度數顯非接觸式紅外測溫槍 High – precision digital non – contact infrared thermometer
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DIY火災報警器 DIY Fire Alarm
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