"5.14 Element  Mesh  Generation"
其中Ai, Aj   =   Alphabets A - Z or alphabets a - z. That is max 52.

DEFINE MESH

A JOINT 1
B JOINT 2
C JOINT 3
D JOINT 4
*----------
E JOINT 5
F JOINT 6
G JOINT 7
H JOINT 8
*----------
I JOINT 9
J JOINT 10
K JOINT 11
L JOINT 12
*----------
M JOINT 13
N JOINT 14
O JOINT 15
P JOINT 16
*----------
Q JOINT 17
R JOINT 18
S JOINT 19
T JOINT 20

GENERATE ELEMENT
MESH ABCD 5 5
MESH EFGH 25
MESH IJKL 25
MESH MNOP 25
MESH QRST 25

那就是说，最多能用命令mesh 13块板，有点少啊。其他板只能通过图形界面来划分了？为啥要加这个限制呢？