求助一句话? at the cartridge top, the feed gas enters the central internal pipe and is conveyed to the tube side of the 2nd interchanger, located in the centre of the second bed,where it is heated up by cooling the product gas that leaves the second bed. 红色部分翻译: 在第二床层内部,进料气对离开第二床层的产品气进行冷却,同时自身温度升高。 查看更多