显示温度梯度为何不能显示全部节点数据

我用的是SOLID70单元，生成的是4面体。最后提取的温度解是163个，而梯度解怎么就职能是148个呢？不知大家遇到过类似问题没有，是怎么解决的？同样地，提取应变，应力也是148个。以上的APDL命令流也是一个典型的二维稳态热分析的例子，请大家试下看是否有我所说的问题。告诉俺，谢谢！！
FINISH
/CLEAR
/title,transient temperature
/PREP7
/units,si
*AFUN,DEG
PRECISION,0
BLC5,0,0,0.01,0.01,0.1
ET,1,SOLID70
MPTEMP,,,,,,,,,,,,,
MPTEMP,1,25
MPDATA,c,1,,461
MPTEMP,,,,,,,,
MPTEMP,1,25
MPDATA,KXX,1,,15
MPDATA,KYY,1,,10
MPDATA,KZZ,1,,5
MPTEMP,,,,,,,,
MPTEMP,1,25
MPDATA,DENS,1,,8360
ESIZE,0.0068,0,
MSHAPE,1,3D
MSHKEY,0
VSEL, , , , 1
VMESH,1
FINISH
SAVE
/SOLU
ANTYPE,4
TUNIF,0
timint,off
time,0.01
deltim,0.01,,,1
SFA,2,1,HFLUX,2000.0,
DA,1,TEMP,0,0
SFA,4,1,CONV,1500,400
allsel,all
solve
save