双语例句
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This kind of boiler without mechanical ventilation of blowers and induced draft fans is distinguished as natural draft boilers.
这种不采用鼓、引风机机械通风的锅炉，称之为自然通风锅炉。
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The feasibility of applying natural draft ventilation in Taopinghe phosphate mine was studied from bath aspects in theory and practice .
从理论和实践两方面分析了桃坪河磷矿采用自然通风的可行性。
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Taking natural thermo-potential difference as natural draft pressure is ambiguous in theory and not in accord with the actual condition of mines.
把自然热位差当做自然风压在理论上是模糊的，是不符合矿井实际情况的。
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