Human beings must consume energy to maintain all kinds of complex life activities.
人体必须持续地消耗能量以维持各种复杂的生命活动。
Who are their customers? Our daily life, computers, mobile phones, water heaters, air conditioning, lighting... Which do not need to consume energy?
谁又是他们的消费者？我们的日常生活中，电脑，手机，热水器，空调，电灯…哪一样不需要消耗能量？
Installs, the work stable reliable, the laying of cable, not to consume the conventional energy source long easily, the service life and so on merits.
安装简便、工作稳定可靠、不敷设电缆、不消耗常规能源，使用寿命长等优点。
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