由衍射指数之间的关系,有: 100 100 d0=2d200 100=51/2 210 考虑0与衍射指数的关系: sin20∝h2+k2+12=M(衍射线线数 P格子线数比 1:2:3:4:5:6:8:9:10:11:12:13:14:16:17:18:192021:22242526:27 I格子线数比: 1:2:3:4:5:6:7:8:9:10:11:12:13:14:15:16:17:18:19:20:21:22:23:24 F格子线数比: 3:4:8:11:12:16:19:20:24:27:32:35:36:43:48由衍射指数之间的关系，有： d100 = 21/2d110, d100 = 31/2d111 d100 = 2d200, d100 = 51/2d210 考虑与衍射指数的关系： sin2  h 2 + k2 + l2 = M (衍射线线数) P格子线数比： 1:2:3:4:5:6:8:9:10:11:12:13:14:16:17:18:19:20:21:22:24:25:26:27 I格子线数比： 1:2:3:4:5:6:7:8:9:10:11:12:13:14:15:16:17:18:19:20:21:22:23:24 F格子线数比： 3:4:8:11:12:16:19:20:24:27:32:35:36:43:48