#'(!"#$)*56+,-./01 222'(3456789:%;<==>?@A?BCD!"#$%& () () 1. 1.25 2.3.1.5 ()() " 1.25 1.5) 1.25 or 1.5 1! 5 2)! 3)!562 7 8
!13012 2.5m 5 1/5 1m 5m 1/5 1m 2m 1.2m 9 4)!6132 35m 10m 10... A B 2A35m 12
1322 "35m 2A35m 10m 13 14 BD 2B35mB CDC 2C35mC D 5)!1312 15 16
6)!56134 7)!561352 1m1/2 17 (H-1)2 Hm 18 8)!5634! 12m ()1.25 1.25 1.25 1.5 19 8)!5634 W!12m 1.5 1.25W
9)!13011 21 1! 2, 13011! 22 350% 23 (30m) 350% 30m 20m 24 (20m) 350% 20m 30m
56 1. 20m+1.25/1 2.3.31m+2.5/1 2)!56 20+1.25A (m) 31+2.5A (m) () 27 28
3)!1353... W/2 29 30 3)m!1353 (...)1m m1/2 (H-1)2 2 1/8 12m (H-1)2!1m 31 32
A 20/10 40/10 36
A 35mA 12m 37 12m 12m 20/10"374/814+40/10"440/814 = 30.810 3 A 30m 1.25 17m 20m 22m 20/10 40/10 A 12+1+2m =15m! 56 38 12m 56 12m"1.25=15m 1.5 (12+1+2)"1.5=22.5m 56 (1+12+1)"1.25=17.5mA 1.25 (1+12+1+2)"1.25=20.0m 17m 20m 22m 20/10 40/10 "15m 12m A 39 m 8"2+7=23m 23"1.25+20m 22.5m 17m 20m 8m 40/10 10m 1.25 40 10+1+2=13m 13"1.25+10=26.25m 17m 20m 13m 40/10 22.5m 22.5m