???? 2? ???? ???? ??????? △50m ??? △??????? △?????(???? ???????) △?????????? △?????―??? ????? ???.

??? ??? △1?m ??? △??? △??????? △???(???? ???????) △????? ????.

?? ???? ?????―??? ???? 1?600m, ???? 1?200m? ??? ?? ???? ??.

5,6??? ??? ????? ???? ????? ??? ???? ?? ? ?????(???? ???????)? ??? 4??? ?? ??? ?? ?????―??? 1?m? ????.

??????? 1?m?? 50m? ??? ?? ??? ??? ??? ??? ??????? ??? ??? ???.

???? 1? ?? ? ? ?? ???? 50% ???? ???? ??? ? ???, ???? ???? ????? ??? ??? ??? ?????? ??? ?? ????.

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