The switchable glass can modify internal and external transparent state to make the meeting room more flexible for use.
调光玻璃可改变内外的透明状态，让会议室使用更加灵活。
Scientists think, finding the correct alloy mixture was essential to producing a transparent and energy efficient switchable glass.
科学家表示，找到合适的合金是制造这些玻璃的关键。
Previous attempts at switchable glass faced commercialization problems such as being too expensive, or having a yellowish tint that was unsuitable for cars or clear viewing.
之前的各种可变换玻璃制品都在商业化上遇到了问题，例如过于昂贵，或者有一种微黄的颜色，不适于用作汽车及需要清晰视野的领域。
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