1) Liaoxi Dishan Qiuling 辽西低山丘陵2) hilly land in western Liaoning 辽西丘陵山地3) Liaodong Dishan Qiuling 辽东低山丘陵4) hilly areas in western Liaoning 辽西丘陵区5) low mountains and hills 低山丘陵 1. On the basis of investigating synthetically and step on and check on the spot...