???? 24??? ??? ??? ??? ????, ?????? ???? ???.
???? ??(24?) ????? ??????? ??? ???? ????? ?? ??? ??, ????? ???? ??? ???? ??? ?? ??? ????? 23? ????.
???? ???, ???? ???? ???? ???? ????? ?? ???? ??? ???? ?? ???. 23? ?? 6??? 25? ? 12??? ?????? Δ????(24???) ????, ???·?? 20~60mm Δ????, ???(24? 18???) 5~30mm Δ????(24???), ??(24?), ??5?(25?), ?? 5mm ???.
?? ????? 11~17?, ? ????? 18~23??, ?? ??? ?? ??(3~12?)? ?? ????.
??? ?? ????? Δ?? 14? Δ?? 15? Δ?? 13? Δ?? 15? Δ?? 14? Δ?? 15? Δ?? 16? Δ?? 14? Δ?? 14? Δ?? 19?, ? ????? Δ?? 22? Δ?? 22? Δ?? 20? Δ?? 20? Δ?? 21? Δ?? 20? Δ?? 21? Δ?? 22? Δ?? 23? Δ?? 22?? ????.
??? ??? ?? ????? 0.5~1m, ?? ????? 0.5~3m, ?? ????? 1.0~2.5m, ?? ????? ?? 2m, ?? ????? ?? 4m, ?? ????? ?? 3m? ???.
???? ?????. ???????? ??? ?? ??? ?? ???? ? ??? ‘??’~‘??’?? ????.
??? ???? “?? ??? ?? ???? ????? ????? 200m ??? ?? ??? ?? ?? ???, ????? ??? ???? ???”? ????.
(??=??1)
?? 0