recyclern.反复循环器；回收站recyclevt.再利用；使再循环；再制vi.循环n.再循环recycled black liquor循环黑液recycled water system中水系统recycle cooling water循环冷却水recycle of hot exhaust排风热回收recycled water network再生水管网recycle chromatography循环色谱法recycle of exhaust air排风能量回收recycled concrete slab再生混凝土板recycled writing paper再生纸recycle gas compressor循环气压缩机