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Solar panels are placed on the roofs of a house and the Sun's energy is used to heat water .The energy can be stored a number of days, so on cloudy days you can use solar energy, too.. W[r]
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Solar panels are placed on the roofs of a house and the Sun's energy is used to heat water .The energy can be stored a number of days, so on cloudy days you can use solar energy, too.. W[r]
Ngày đăng: 18/12/2021, 23:15
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