exchanging type technology
exchanging type technology
交换式技术
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The invention relates to the warming equipment technology field, which specifically relates to a closed type of energy saving, warming and heat exchanging system.
本发明涉及采暖设备技术领域，具体涉及一种封闭式节能采暖换热系统。
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