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Water tank insulation technology has been basically mature.
储水箱的保温技术已经基本成熟。
youdao
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The additional costs for insulation and energy technology also pay off.
保温材料和能源技术的额外费用也还清了。
youdao
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The additional costs for insulation and energy technology also pay off.
保温材料和能源技术的额外费用也还清了。
youdao