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軌道エレベーター案
A2
A20080901
•
Created October 19, 2020
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総工費150兆円 ケーブル直径2m 人工島寸法 縦500m 横500m
Project Details
Project ID
438006794
Created
October 19, 2020
Last Modified
October 19, 2020
Shared
October 19, 2020
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visible
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