White and pink foam were being stuffed into the boxes. 白色及粉色的泡沫材料被裝入盒子中。
While Burchard was experimenting with refrigerator insulation, he came up with a novel way of molding low-density foam. 那年伯查德正在做有關(guān)冷凍機隔熱材料的實(shí)驗，實(shí)驗中他使用新的方法做出一種低密度的泡沫材料。
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