I live in the Martian wilderness!

The Divine Craftsmanship Module was restarted, and the entire operation process was exactly the same as when the Oasis No. 1 shelter was sealed.

The acquisition arm at the front of the module re-intakes the red Martian soil ejected during drilling.

Immediately afterwards, a thin injection tube was inserted into the 1-centimeter annular gap between the casing and the well wall.

The Martian soil mixed with a trace amount of "modified geopolymer precursor" was then evenly injected into the mixture.

"Start microwave sintering."

"Sizzle—"

The microwave probe precisely sintersed the filling material within two meters of the wellhead, solidifying it into an indestructible ceramic-like matrix.

This process is like putting a thick and sturdy cement collar around the neck of this deep well.

It firmly "welded" the very top of the carbon fiber sleeve to the surrounding Martian rock wall.

It not only provides absolute structural stability, but also forms the top layer of airtight foundation required for installing manhole covers.

"Perfect." Gu Yu looked at the dark, smooth wellhead that blended seamlessly with the surrounding rocks and nodded in satisfaction.

Now, this well has truly transformed from a rough hole into a "subterranean heat exchange station" that can be used permanently.

"Xuan, proceed with the fifth phase. Prepare to distribute the tasks..."

"Please wait a moment, Captain." Xuanjian's voice suddenly interrupted him. "Before lowering the equipment, we need to manufacture a key component—the wellhead sealing and control assembly."

"A manhole cover?" Gu Yu was taken aback. "Couldn't you just cover it with a piece of alloy sheet?"

【negative. 】

Xuanjian immediately projected a complex 3D model onto Gu Yu's HUD interface.

"According to the plan, we need to lower a U-shaped heating rod into the well, which requires two power interfaces."

"A submersible pump needs a power interface and a water outlet pipe, and an environmental sensor system also needs a data interface."

"At the same time, we also need to be able to create a vacuum and inject carbon dioxide into the well."

"Finally, all these pipelines and cables must pass through the manhole cover, while ensuring that the manhole opening is absolutely sealed at 0.1 atmospheres."

Xuanjian zoomed in on the model, revealing the dense array of interface requirements.

"A simple alloy plate cannot achieve these functions. What we need is a 'water collection tree' that integrates 'sealing, control, and distribution'."

Gu Yu looked at the complex design and instantly understood.

This is not just a cover; it is the "master valve" and "dial" of this well.

"Is this standard component listed in the supplies inventory?"

"No, the Tanlong module is only equipped with a 'GTY-S2 type' small-mouth direct sampling sealing valve for scientific exploration."

"Its interface standard is 10 centimeters, which cannot be adapted to our 28-centimeter engineering wellhead."

-

On the screen, a 3D model of a metal valve with a precise structure but significantly smaller dimensions appeared.

"Then let's make it bigger." A glint of excitement flashed in Gu Yu's eyes. "Xuan, tell me where that thing is."

"In cargo hold number two, on the upper storage shelf, in the spare parts box numbered 'DR-07'."

Without hesitation, Gu Yu turned and walked towards the huge, warehouse-like cargo hold number two at the back of the shelter.

Among the rows of neat metal shelves, he quickly found the box with the words "DR-07 Precision Drilling Spare Parts" printed on it.

Upon opening the box, amidst a pile of spare drill bits and sensors, the small and precise "GTY-S2" sealing valve lay quietly nestled in shock-absorbing foam.

Gu Yu took it out and walked back to the omnipotent Divine Craftsmanship Module.

"Mysterious, take this small valve as the core, use it as the foundation, and use divine craftsmanship to print a 'transfer expansion flange' for it."

"Integrate all the interfaces we need onto this new disk."

"Understood. Generating the 'secondary additive manufacturing' solution... CAD model generated."

Gu Yu carefully and firmly fixed the sealing valve that he had taken from the cargo hold into the printing compartment of the Shen Gong module.

Printing has begun.

The electron beam, like an invisible scalpel, precisely cuts away some useless external structures on the valve, making room for subsequent "growth".

Immediately afterwards, the powder spreading roller started, spreading a thin layer of carbon fiber reinforced PEEK composite powder around the modified valve.

The electron beam scanned again, perfectly fusing the newly laid powder with the edge of the original metal valve at the atomic level.

One layer, and another.

It's like a new socket and a larger casing constantly "growing" around a small original socket.

An hour later, the printing was complete.

What Gu Yu took out of the printing chamber was no longer that small valve.

Instead, it is a "water-collecting tree" with the original valve as its core, a diameter of half a meter, and covered with various newly added high-power interfaces and data ports!

Each interface is clearly marked with laser etching: [High Power Input A] [High Power Input B] [Liquid Output] [Data Bus] [Environmental Control Valve]...

What was originally a 10-centimeter hole is now just an inconspicuous environmental control channel in the center of this huge flange.

Gu Yu patted the newly made manhole cover with satisfaction. "Xuan, let's go install this on the well."

But before that, the "heart" and "blood vessels" must be inserted first.

Gu Yu operates the "Sky-Reaching" crane arm of the Tianshuo crane. This time, it is lifting an extremely complex "downhole work assembly".

Its main body is the U-shaped "Zhurong No. 1" heating core, which was just forged and has a long cable attached.

Half a meter above it is a small but powerful "deep well submersible pump" taken from the supply warehouse.

At the very bottom of the assembly, an additional "underground working condition camera" with an infrared auxiliary light is mounted, which will become Gu Yu's eyes underground.

A finger-thick water hose, two heating cables, and the camera's signal cable were neatly bundled together to form a complex "umbilical cable."

The entire work assembly was carefully lowered down the smooth, mirror-like black carbon wall to the bottom of the well, 20 meters deep.

[Component has reached bottom. Downhole camera activated.]

On the main screen, a view from 20 meters underground instantly switched to the scene.

The first thing that catches the eye is the high-definition, clear black-and-white image transmitted by the "broad-spectrum infrared camera".

Under the infrared light from the camera, Gu Yu could clearly see the U-shaped heating rod lying quietly on the rough ice surface at the bottom of the well.

"Switch to thermal imaging mode," Gu Yu issued the more crucial command.

The scene shifted instantly; the clear black and white image disappeared, and a grayscale image composed of temperature began to appear.

"Mysterious, activate pseudo-color rendering."

"clear."