logo 风车 要半圆的扇叶 是什么语句 ？

REPEAT 4[FD 50 REPEAT 18[RT 5 FD 25*0.174 RT 5]PU HOME PD RT 90]

会动的如下：
TO FENGCHE
MAKE "A 0
LABEL "G
IF :A = 360 THEN MAKE "A 0
BK 150 FD 150
RT :A
repeat 4[fd 50 rt 90 repeat 180[fd 25*0.0174 rt 1]rt 180]
ht
WAIT 1
CLEAN
LT :A
MAKE "A :A + 10
GO "G
END

不会动的如下：
bk 150
fd 150
repeat 4[fd 50 rt 90 repeat 180[fd 25*0.0174 rt 1]rt 180]

TO FC :R
FD :R
RT 90
REPEAT 18 [RT 5 FD :R*0.174 RT 5]
RT 90]
END

TO MAIN :R
REPEAY 4 [FC :R RT 90]
END