"These little things are kind of interesting."

An Wen was bored, he squatted there and watched for more than half an hour, knowing that the wheel bucket of the excavator was completely corroded, so he stood up.

If the culprit is found, then the matter will be settled.

"Wheel bucket excavators can't keep up with the times."

Although the wheel bucket excavator is fast in mining, it is essentially an open-pit mining machine and is not suitable for underground excavation at all.

The reason why Anwen did not replace these wheel bucket excavators is mainly because they are troublesome.

Anyway, if it can be used, make do with it.

But now it seems that it is really necessary to change equipment.

Back at the base, Anwen purchased a set of ultra-precision machine tools and two super-large machine tools directly from the store.

After that, Anwen spent half an hour to build a factory.

"Construction: Mining Machinery and Equipment Manufacturing Plant

Grade: Excellent

Attributes: Machining accuracy of parts +55%, production efficiency +50%, attenuation of mining machinery wear +45%, strength of excavation equipment +45%

Special: Mining Machinery Manufacturing list opens

Income: 1,200,000 survival points/hour"

Anwen didn't build all the industrial equipment manufacturing plants before, because some of them were not needed at all.

And to build a full-category industrial system, the cost is also huge.

As now, there is a need for temporary construction, and nothing is delayed.

After the construction of the plant, Anwen directly clicked on the list of mining machinery manufacturing.

From top to bottom, light up all the icons.

"Armed Mining Machinery - Ba Snake...... Armed Mining Machinery - Dilong ...... Armed mining machinery - the Golden Spider. ”

An Wen looked at the bottom three ultimate mining machines and expressed satisfaction.

Of these three ultimate mining machines, Ba Snake is an open-pit mining machine, Dilong is an underground mining machine, and Gold Spider is a multi-functional mining machine.

Close the list and come to the store.

An Wen found the icon of the earth dragon and spent 36 million survival points to buy the earth dragon directly.

"Sure enough, it's wise to build a store."

If before, if you wanted to create a ground dragon in an instant, you still need to fuse the backbone technology, and then spend ten times the survival points to make it in an instant.

It's like now, click on the store, buy it when you say it's buying, and it's cheap.

Again to the underground space.

An Wen took out the earth dragon from the warehouse in the underground space.

In an instant, the huge body of the earth dragon unfolded, like a mountain range in front of An Wen.

"Armed Mining Machinery - Earth Dragon

Grade: Epic

Attributes: Segmented Survival (Special), Digging Head Strength +135%, Tunneling Speed +120%, Armor Defense +150%, Weapon Attack Damage +115%, Segmented Disengagement Speed +120%

Attack: 350,000-380,000 individuals, 80,000-150,000 groups, 600,000 self-explosions

Defense: 1,600,000"

To be honest, even if An Wen knew that the self-detonation of the earth dragon was not the overall self-detonation, he was still a little panicked when he saw the self-detonation data on the attributes.

Closing the list of attributes, An Wen looked at the giant earth dragon.

The entire Dilong excavator is 220 meters long and 15 meters in diameter, and consists of an armed main cutter head unit plus ten individual power units.

The external drive looks like protruding threads, each 50 cm wide.

These matte thread surfaces are actually made up of numerous tiny tapered bumps.

An Wen didn't care about these, what he cared about was the armament above.

As an armed mining machine, the Earth Dragon has a weapon launch port underneath its outer armor.

When the scale-like exterior armor is exposed, countless bullets are fired from the inside, attacking nearby enemies 360 degrees without blind spots.

As for the monolithic weapon, it is the artillery mounted on the main cutter head with a caliber of 380 mm.

Bell ......

An Wen knocked on the armor of the earth dragon twice, and was very satisfied with this big guy.

"Although the attack of the earth dragon is average, its life-saving ability is outstanding, and I can also go to the waves."

Coming to the entrance at the rear, An Wen pressed the switch.

Click!

The chainring-mounted metal hatch opens.

"Who designed this, this entrance is a bit of a bad taste."

An Wen looked at the entrance of the black hole at the end, and always felt that this was going through the back door.

Entering the interior of the Dilong, An Wen sat on the operating chair and fastened his seat belt.

Flick the switch on the seat.

Click!

With the sound of machinery, the seat where An Wen was located quickly moved towards the head of the earth dragon.

The speed, like a roller coaster, is very exciting.

Click!

When the seat stopped, An Wen had already come to the main console, that is, the inside of the main cutter head of the earth dragon.

Looking at the instrument panel, although there are no electronic devices, many things can be made mechanically, such as angle meters, gyroscopes, odometers, tachometers, pressure sensors and so on.

The boiler is ignited to boil water, the pressure rises, and the steam turbine is started.

"Let's go."

When everything was ready, An Wen pushed down the joystick.

On the surface of the huge earth dragon, the spiral drive begins to rotate, and the cutter head begins to rotate in 9 layers in both directions.

Boom Boom Boom ......

The earth dragon rushed into the underground mining area, the mine hole that was originally mined by the wheel bucket excavator.

Squeak squeak......

Click......

Boom Boom Boom ......

An Wen sat inside the earth dragon, listening to all kinds of noises coming from outside, and the whole person was not good.

This sound insulation is too bad.

Fortunately, apart from the noise, there was not much to feel and it was quite stable.

The inside of the cab is not dark, the kerosene lamp has been lit, and An Wen can see the situation on the dashboard clearly.

"It's too dark to see anything."

An Wen looked at the observation windows that resembled periscopes directly in front of him and on the left and right sides, and found that he couldn't see anything clearly.

But it doesn't matter, if you can't see it, you can't see it.

呲呲呲......

After a while, An Wen heard the sound of those little monsters spitting.

But the Earth Dragon is not a wheel bucket excavator, and the acidic liquid spit out by those little monsters is not enough to corrode the Earth Dragon's external armor, but the damage is definitely still a little.

"Spit on you, show you a big baby."

An Wen pushes the weapon lever on the left side, and the outer armor is tilted 45 degrees.

"Let's face the hail of bullets."

Raise your hand and press the weapon attack button.

The muzzle under the outer armor, fired instantly.

Da Da Da ......

Dense bullets, 360 degrees without dead angles around the design.

Before many little monsters could spit, they were beaten into honeycomb coals by dense bullets, and the blood bar was emptied in an instant.

"Cool!"

An Wen heard the sound of the monster exploding and laughed.

This feeling is really cool.

After more than ten seconds, An Wenshuang was enough.

He turned off the weapons of the fourth to eleventh sections, and kept only the weapons of the second and third sections to continue firing.

But even so, these little monsters in the veins were instantaneous.

Click!

Anwen pushed the gear and adjusted the speed to 2nd gear, so that the digging speed of the earth dragon was accelerated.

"I'm here to see what's going on down there."