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郑天挺
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郑天挺
Encyclopedia
历史学
史学家
释
Zheng Tianting
郑天挺
(1899-08-09~1981-12-20)中国历史学家、教育家。原名庆甡,字毅生。
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energy-rich
energy-saturated media
energy-saving agricultural machinary
energy-saving and low-carbon technology
energy-saving building
energy-saving control of sensors
energy saving glass
energy saving in aquaculture hothouse
energy saving label
energy saving lighting
energy-saving management of agricultural machinery processing in rural areas
energy-saving management of building in rural areas
energy-saving management of cooking in rural areas
energy-saving of diesel locomotive
energy saving of station building
energy-saving technologies in greenhouse
energy saving technology of electromagnetic heater
energy-saving technology of the rod pumping
energy-saving technology of vehicle
energy saving transformation of existing building
energy saving transformer
energy security
energy-selected image
energy-selected image, ESI
energy-sensitive
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