1、榆冈[yú gāng] 即榆罔。2、冈子[gāng zǐ] 不高的山。3、竹冈[zhú gāng] 竹林茂盛的山脊。4、干冈[gān gāng] 居西北方位的山冈。旧时被视为宜于营建帝王宫殿......