| 释义 |
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In recent years, the Southern California region has improved building codes, evacuation procedures, and procurement of new technology. 近年来，南加州地区改进了建筑规范、疏散程序和新技术采购。 - 2
Changing building codes, evolving tastes, and the high cost of maintaining those wonderful old signs have businesses embracing LEDs, which are energy efficient but still carry great cost. 不断变化的建筑规范、人们逐渐发展的品味，以及维护这些精美的旧标志牌的高昂成本，让企业欣然接受了发光二极管。它们节约能源，但成本仍然很高。 - 3
If, for example, building codes included green construction guidelines, most developers would be too lazy to challenge them. 例如，如果建筑条例中包含绿色施工指导方针，大多数开发商会懒得去挑战它们。
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