The Chinese submarine base located in Mishima City is currently assembling a new model of submarine, which must be delivered to the navy for sea trials in two months. The intelligence agency of D country has confirmed through advanced technological means that the new model of submarine in China uses cutting-edge multi alloy materials, making the noise lower than the ocean background noise, greatly enhancing the submarine's deterrence. Country D
The Chinese submarine base located in Mishima City is currently assembling a new model of submarine, which must be delivered to the navy for sea trials in two months. The intelligence agency of D country has confirmed through advanced technological means that the new model of submarine in China uses cutting-edge multi alloy materials, making the noise lower than the ocean background noise, greatly enhancing the submarine's deterrence. Country D