Time flies quickly, it's August in a blink of an eye, and now the little devils can't be around for long, and there are not many little devils in China, and it is expected that they will all be driven away next year.

At this time, the Hailong-class submarine finally ushered in the key node of the first sea trial.

You must know that this is China's first submarine, an 800-ton submarine, although it looks small, its combat capability should not be underestimated.

This sea trial

Chapter 173 of "The System of the Bright Sword" Submarine Sea Trial is in the middle of a hand-to-hand fight, please wait a moment,

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