???? ???? ??? ????? ??? ??? ???? ‘???? ??? ??(SLR·Satellite Laser Ranging)’ ???? ???? ??? ?? ??? ????.
??? 8? 11?? A5?…??? ?? ?????, ?? ??? ??? ????
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“????? ?? ?” ‘???? ??? ??(SLR)’ ????? ??? ?? ???? ??? ??? ??. ??????? ??
SLR? ?????? ?? ???? ??? ? ???? ????? ?? ???? ??? ???? ??? ???? ???? ??? ??? ????(mm) ???? ??? ???? ????. SLR? ??? ????? ???? ?????? ???? ? ??? ???? ?? ?? ?? ?? ? ?? ??? 20??? ?? SLR 40? ?? ??? ???? ??.
???? ??? SLR? ?? ?? 300~2?5000km? ??? ???? 50? ?? ??? ? ??? ????. ?? 26? ‘???’? ?? ??? ??? ‘??????’? ??? ??? ??? ‘??????? ??? 5?’? SLR? ??? ??? ?? ?? ??? ??? ? ??.
??? ??????? “???? ??? ?? ??? ???? ????? ???? ?????? ??? ????”? ???.
???? 2015??? ???? SLR ???? ??? ??? ??? ???? 5cm ??? ?????? ??? ????. ??? ???? ??? ??? ???? ??? ???? ???? ?? ????? ?? ????? ?? ??? ??? ??.
??? ?????? ?? uneasy75@donga.com