After completing the transformation and finalization of the Regression, Ma Zhe stored this battleship model in the mechanical insect model library, so that the next time he needs it, he only needs one idea to let the mechanical insect immediately form a regression according to the model.

Then, with some excitement, he took the first sea trial aboard the revamped Return.

For the first time in a moonlit night, the oddly shaped silver battleship sailed out of the base and showed itself under the sky.

Ma Zhe sat in the captain's seat in the captain's room, with transparent glass-like materials in front of him and on the left and right, with an unobstructed view.

In front of him, several small robots were operating the radar and sonar and other equipment that Ma Zhe copied from the Chengjiang, and next to him, still according to the usual practice, stood a secretary, of course, now Ma Zhe's deputy.

"The Return! Straight ahead! Burn the wind! ”

The secretary next to him, "Xiao Hui", made a sweet female voice: "Order confirmed!" Return! Straight ahead! Burn the wind! ”

With his command, the three sets of propellers under the sea suddenly spun rapidly, and the strong recoil made Ma Zhe be pressed against the back of the seat.

The silver battleship streaked a slightly arcing white trail on the surface of the sea, and rushed towards the left front......

"Uh...... It seems that the center of gravity has not been adjusted well! Ma Zhe adjusted to the acceleration a little, and said with some embarrassment.

However, this was only a minor problem for him and the Return, and Ma Zhe immediately began to adjust the structural layout of the Return.

As a result, on this sea area, a silver-white gorgeous battleship walked in the S shape for a while, and a B type for a while, leaving quite coquettish traces of movement.

If there was a well-known military observer bureau sitting now, he would probably comment: "Well, the evasion action is very professional!" ”

It wasn't until half an hour later that Ma Zhe was able to get the Return out of the standard straight line.

He sweated and coughed a little awkwardly.

"Ahem, these are small problems, and the road of life has always been tortuous!"

Return: "......" (My heart is also very tortuous...... ）

"Okay, that's the end of the sea test, let's try the submarines of the Return, I command, maximum speed, dive!"

"The Return! Maximum speed, dive! Xiao Hui repeated the captain's order.

The next moment, a large number of bubbles and water splashed around the hull of the return, gradually sinking into the sea, and in less than a minute, it disappeared into the sea, leaving only a shallow track.

"Dive to a depth of 100 meters!"

"Dive to a depth of 300 meters!"

"Dive to a depth of 800 meters!"

……

As Xiao Hui continued to report the depth of the dive, the scenery in front of Ma Zhe's eyes was also constantly changing.

His heart moved, and his surroundings changed, and the bulkheads above his head and around him suddenly became transparent, enveloping the captain's cabin like a glass cover.

Ma Zhe saw the moonlight projected on the tranquil seabed, as if it was a light that was tortuously analyzed through the spectrum, and the colors were beautiful.

He was a little stunned for a moment.

Although he has been with the ocean since he was a child, this is the first time he has dived into such a deep sea, and it is also the first time he has seen the other side of the ocean, or rather, this is the real ocean.

Two spotlights are turned on at the bow of the ship, which shine on the colorful coral reefs on the ocean floor, creating a variety of fascinating scenes.

Schools of fish of different colors swim among the corals or curiously cruise around the Return.

It is full of the color of life, and it is a miracle of life that ordinary people cannot experience in person.

Ma Zhe was in this bizarre world, but a sentence suddenly appeared in his mind.

Humanity's progress is simply too slow!

—Jules Verne, from 20,000 Leagues Under the Sea

This is one of the few books that Ma Zhe has read, but it is also his favorite book.

What impressed him the most was the lonely and proud figure in the book.

At this time, in such an environment, he truly realized the urgency and desire contained in this sentence, yes, the progress of mankind is too slow!

Even today, space and the ocean are still largely unexplored and unrecognized.

Good thing, I have a mechanical bug!

He had a vague premonition that what the mechanical insects could bring to himself and humans might be the power to break all these shackles.

"Keep diving! I'm going to see the return number...... No, look where my limits are! There was a hint of longing in Ma Zhe's eyes.

"Dive to a depth of 1,000 meters!"

"Dive to a depth of 1,500 meters!"

"Dive to a depth of 2,000 meters!"

……

It's not enough, Ma Zhe can feel that the mechanical insect is far from reaching its limit, and it can still hold on!

"Dive to a depth of 7,000 meters!"

"Dive to a depth of 7,500 meters!"

……

"Crunch!" It wasn't until the Return descended to about 7,500 meters that there was a sound of steel twisting from the hull.

"Now, is that all it can be?" Ma Zhe muttered, stopping the return from continuing to dive.

The water pressure here is already quite terrifying, and at this time, the 10,000-ton force acts on the Return, the most advanced submersible in the world, and the deepest is almost to this extent.

The fact that the Return was able to dive to this depth with such a thin hull thickness is already a miracle of black technology.

"Sooner or later, I will conquer you!" Ma Zhe's eyes flashed.

"The Return! Return! ”

"It's the captain! Return! Return! ”

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