求助一句话? where it is heated up by cooling the product gas that leaves the second bed. 这句的前面为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. 原料气从内框/筒顶部进入内部中心管后进入位于第2床层中部的第2内部 换热器 管程,与离开第2床层的产品气换热后温度升高?还是与产品气换热温度升高后离开第2 床层。查看更多4个回答 . 3人已关注