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另:科技文体所述是客观规律，尽可能防止使用第一、第二人称。 Exam. 炉壁采取耐火砖可大大降低热耗。 译文1：If you use firebricks round the walls of the boiler, the heat loss can be considerably reduced. 译文2：The heat loss can be considerably reduced by the use of firebricks round the walls of the boiler.译文3：the use of firebricks round the boiler can considerably reduce the heat loss.
2、广泛使用被动句
科技文章侧重叙事推理，强调客观准确。使用被动句情况：无须说出主语、不愿说出主语或说不出主语。科技文体往往是前后两种。Exam. Attention must be paid to the working temperature of the machine. You must pay attention ...
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