Langrisser-Descendants of the light 梦幻模拟战之光之末裔
descendants of the light
光明的后裔
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Modern bulbs, the descendants of that demonstration, are cheap (around 50 cents) but inefficient, because only about 5% of the energy they use is turned into light and the rest is wasted as heat.
现代灯泡-那个实例的后代-很便宜（约50美分）但却效率极低，这是因为只有5%的能量转换成了光，其他都被变成热量浪费了。
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