用R语言整理格式为dataframe： SLB SLMH SLLL SDUL SSAT SRGF SSKS SBDM SLOC SLCL SLSI SLCF SLNI SLHW SLHB SCEC SADC

SLB SLMH SLLL SDUL SSAT SRGF SSKS SBDM SLOC SLCL SLSI SLCF SLNI SLHW SLHB SCEC SADC 1 5 A 0.099 0.244 0.393 1.000 1.030 1.230 8.040 15.89 48.13 -99.00 0.12 6.75 -99.00 30.7 -99.00 2 15 A 0.108 0.253 0.396 0.850 0.880 1.250 6.800 17.49 47.51 -99.00 0.09 6.81 -99.00 26.9 -99.00 3 30 AB 0.122 0.267 0.400 0.700 0.700 1.280 5.190 19.84 46.46 -99.00 0.07 6.91 -99.00 26.0 -99.00 4 60 BA 0.135 0.279 0.404 0.500 0.570 1.330 3.330 22.13 45.36 -99.00 0.06 7.02 -99.00 27.2 -99.00 5 100 B 0.135 0.278 0.403 0.380 0.570 1.390 1.940 22.11 44.77 -99.00 0.05 7.17 -99.00 27.4 -99.00 6 200 BC 0.125 0.265 0.398 0.050 0.680 1.450 1.100 20.41 44.59 -99.00 0.05 7.35 -99.00 27.3 -99.00