Horizontal boiler and vertical boiler is the invention of the Europeans, squatting boiler is my invention.
立式汽锅和卧式汽锅是欧洲人创造, 蹲式汽锅是本人创造.
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Thermal recovery boiler, the key equipment of heavy crude extraction, is a direct current horizontal boiler.
热采锅炉是热力开采稠油的关键设备, 为卧式直流锅炉.
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