章 144: Chapter 143

The fighter aircraft circled automatically in the sky.

Tang Rui's attention was entirely focused on the maintenance robot.

At this time, the maintenance robot had already removed the propeller for the submarine. It would be brought back to the base for inspection and maintenance later.

The next step was to help the submarine carry out a deeper level of inspection, such as metal flaw detection of the inner liner.

What should he do?

It was straightforward.

He first removed the soundproof tiles on the exterior of the submarine, then opened a hole in the submarine's outer shell to reveal the inner liner.

Next, he could perform metal flaw detection on the inner container.

However, before doing this, he needed to inform the people in the submarine.

Clang clang... Dang dang... 

Under Tang Rui's control, the maintenance robot used its mechanical arm to tap the submarine's outer shell.