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1 giug 1997 anni - 1997 中国自主研发的无缆水下深潜机器人 成功潜入水下6000米处进行科学试验

Descrizione:

#1997.6

标志着中国海洋技术已跻身世界先进行列

Aggiunto al nastro di tempo:

人教版高中历史|Chinese students' PEP SENIOR HIGH HISTORY TEXTBOOKS

ByGUZI
8 mesi fa
4
0
3494

Data:

1 giug 1997 anni
Adesso
~ 28 years ago
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