3-- Beijing Review

The model of unmanned submersible Haidou-1 is on display at the 22nd China International Industry Fair in Shanghai, on September 15, 2020 (XINHUA)

· 2021-07-20 · Source: NO.29 JULY 22, 2021

The model of unmanned submersible Haidou-1 is on display at the 22nd China International Industry Fair in Shanghai, on September 15, 2020 XINHUA

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