AR
- 197 -
(3)
500 750 1000
3:403:453.50
120 160 200
1/2+1 20 2 26 1/2+2 32
1/2
2 1/2
2 1/2
2
1 60 1 60 1 60
2 30 3 45 4 60
1/4 35 1/3 47 1/2 70
2 290 3/4+2 380 1/2+3 500
3/4
)
3/4 ( 25
1
25 )
1 (
1
)
( 25
1
(4)
500 750 1000
3:554:004:05
180 260 320
1 10 1/2+1 15 2 20
2
12 1/2+2
15 3 18
1/2+1
23 1/2+1 23 230
1/4+2 300
3/4+2 400 1/2+3 500
3/4
25 )
(
3/4
1
25 )
1 (
1
)
( 25
1