1光年等于多少米?等于多少千米?
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1光年等于多少米?等于多少千米?1光年等于多少米?等于多少千米?1光年等于多少米?等于多少千米?光速c=299,792,458km/s.一光年等于94,605亿千米,等于9,460,500,000,0
1光年等于多少米?等于多少千米?
1光年等于多少米?等于多少千米?
1光年等于多少米?等于多少千米?
光速c=299,792,458km/s.一光年等于94,605亿千米
,等于9,460,500,000,000米.
9.5×10⒖米
光速c=299,792,458km/s。一光年等于94,605亿千米。