是heating and cooling 吗?1800多是全包括吗?
所有跟帖:
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1800多是全套设备 heat pump does both heating and cooling,当然 ductwork是现
-learner4ever-
♂
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03/07/2019 postreply
20:52:25
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permit
-duoduobao-
♀
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07/26/2019 postreply
07:07:02