???? 24? ??? ?? ??? ?? ?? ???? 10? ?? ? ??? ????.
???? ?? ?????? ???? ??? ???? 24?? ??? ??? 23? ????.
?? ????? 10~18?, ? ????? 24~27?? ??? ????. 23?? ?? ?? ?? 2~5? ??? ??? ?? ??? ????.
???? ? ??? ???? ? ?? ??? ?? ??? ??? ? ??? ??, ?? ?? ???? 10? ?? ??? ????.
??? ?? ????? Δ?? 15? Δ?? 17? Δ?? 11? Δ?? 13? Δ?? 13? Δ?? 14? Δ?? 17? Δ?? 13? Δ?? 14? Δ?? 19?, ? ????? Δ?? 26? Δ?? 24? Δ?? 26? Δ?? 26? Δ?? 26? Δ?? 26? Δ?? 26? Δ?? 25? Δ?? 26? Δ?? 24?? ????.
???? ????. ???????? ??? ?? ?? ??? ??? ???? ??? ‘??’~‘??’?? ????.
??? ??? ?? ????? 0.5m, ?? ????? 0.5~2.5m, ?? ????? 1.0~4.0m, ?? ????? ?? 1.5m, ?? ????? ?? 3.0m, ?? ????? ?? 4.0m? ?? ???.
??? ???? “??? ???? ???? 200m ??? ?? ??? ?? ?? ??? ????? ??? ??? ?”? ????.
(??=??1)
?? 0