百度试题 结果1 题目It is said that the new light bulbs ___ (consumption) less electricity.相关知识点: 试题来源: 解析 consume 反馈 收藏
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Energy-efficient, dimmable, and colorful, these smart light bulbs and starter kits will turn you on to the convenience of a smart home.
In order to save electricity, we should use energy-efficient light bulbs. Which word means “energy-efficient”? A. powerful B. economical C. bright D. colorful 相关知识点: 试题来源: 解析 B。解析:本题考查词汇理解。powerful 强大的;economical 节能的;bright 明亮的;colorful 多彩的。根据句意...
Discover our range of energy-efficient, long-lasting, smart LED light bulbs. Use our calculator to see how much money you could save by switching to LED today.
In addition, workplaces became less dangerous environments since their lighting was improved and since the possibility of fires breaking out from candles or lamps that used oil no longer existed once they were replaced by light bulbs. As private residences became equipped with electricity later in ...
Electrons to light bulbs: Understanding electricity with a multi-level simulation environment 来自 掌桥科研 喜欢 0 阅读量: 26 作者:E Beheshti,A Aljuhani,MS Horn 摘要: Electrical circuits are difficult to understand. Novices tend to have inadequate understandings of what happens at the level of ...
More efficiency means less energy consumed and, in turn, lower electricity bills. Lifespan: LED bulbs usually last longer than incandescent or CFL bulbs. Look for a bulb with a rated life of at least 20,000 to 25,000 hours. You can usually find this on the packaging or in product ...
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Compact fluorescent light bulbs (CFLs) were the green alternative to standard, inefficient incandescent bulbs for many years. They saved a lot of electricity, but if they broke, they would fill your room with an unsafe level of mercury. ...