preheating造句
61. Main elements impacting diesel cold starting are analyzed, concrete plan for diesel cold preheating and starting is put forword, that is using fuel oil heater.
62. Based on the design and motion parameter, the economic benefit of heat pipe transducer preheating combustion supporting gas in hot blast stoves of BF are analysed.
63. The welding technology used for preheating flash butt welding was evaluated for workpieces with large welding section.
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