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中国(3)
IPC部
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IPC大类
F25(3)
F24(2)
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F25B(3)
IPC
F25B030/06(3)
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2021(2)
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Cast-in-place heat exchange pile-wall support structure has heat exchange pipe section pre-embedded in lower baffle wall and lower pile portion, and heat exchange tube which is filled with heat exchange liquid.
DING X, CHEN Z, ZHAO H, WANG C
Graphene pert ground source heat pump pipe, has limiting rod embedded in nut, where side end of limiting rod is provided with fixing rod, and fixing rod is embedded on side end.
LIU D
Solar heat-collecting shutter for use in light-transmission glass house, has blade provided with substrate outer side fixing sheet patch made of graphite or graphene, and base whose surface is coated with graphite or graphene coating.
WANG J, MA H
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