1. O gba ọna kika counter-sisan, tube paṣipaarọ ooru gba eto serpentine, nọmba awọn tubes paṣipaarọ ooru jẹ nla, paṣipaarọ ooru ati agbegbe kaakiri gaasi jẹ nla, resistance gaasi jẹ kekere, ati ṣiṣe paṣipaarọ ooru jẹ giga. ; awọn ti abẹnu aaye ti awọn kula ni e...
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