[공조냉동] 냉동기 성적계수 | 냉동기 효율 | 냉동기 COP(Coefficient of performance)
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[공조냉동] 냉동기 성적계수 | 냉동기 효율 | 냉동기 COP(Coefficient of performance)
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냉동과학
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15 519 просмотров · 2 г. назад
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