? ????? ??? ??. ‘? ??? ???’??? ??? ????? ??? ?? ?? ???? ??? ???? ‘????’ ?? ‘???’??? ?? ‘???’??? ??? ????? ???? ??? ???? ?? ????.

??? ???? ???? ? ?? ????? ??????? ??? ?????? ?? ???? ? ??? ????? ???? ??? ??? ???? ?? ?? ??? ??? ??? ???? ??? ???? ??? ‘??? ???’ ??? ???? ??.

??????? ‘??????’, ???? ???? ‘????’, ??? ???? ‘???’, ???? ??? ??? ‘?????’, ??? ‘???’ ?? ???? ‘??? ???’ ???? ???.

??? ????? △?? ?? ??? ?? ??? ??? ??? ???? △?? ?? ??? ??? ??? ??? ??? △?? ??? ??? ????? ???? ?? ??? ???? ?? ???? ???? ????.

?? ?? ???? ???? ???? ???? ??? ???? ??? ??? ?? ??? ??, ?? ?????? ???? ??? ?? ? ???? ??? ?? ???? ????? ??? ??? ????? ??? ?.

??????? 1980?? ?? ?????? ???? ?? ???? ????? ??? ‘HOG’ ??? ?? ????? ????? ?? ??? ??? ?? ??? ??? ??? ????. ?? ‘HOG’ ??? 35??? ??? ???? 1000??? ??? ??? ?? ??? ??? ??? ????? ?? ??.

???? ???? ‘??? ???’? 10? ??? △?????? ?? ??? △????? ??? ??? ???? △???? ?? ??? ??? △????? ???? ?? △??? ??? ?? ??? ?? ??? ???? △??? ???? ???? △??????? ???? △??? ??? ??? △??? ????? △???? ????.

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