........

Song Zi said: Jin Mu was attacked and the image of the object was curved. There is no sharp weapon in the world, that is, what is the ingenuity of the general, Qi'an?

----- Tiangong Kaiwu, the tenth hammer of the novella. ”

Historically, "Tiangong Kaiwu" did not cause waves in China at that time, but the craftsmanship contained in it was first transmitted to Japan and Korea, such as the method of sinking lead and knotting silver, the method of copper alloy making, the design of large sea ships, jacquard machines and zinc smelting technology, etc., which was called the science of Kaiwu by scholars.

In the middle of the 18th century, Tiangong Kaiwu was transmitted to Europe, and advanced technologies such as piston bellows, ink and wash compartments, deep drilling, rice raising, and irrigation were introduced to Europe, which set off a technological revolution in many industries, and once saved many dying industries in Europe.

After the second hundred schools of thought, after a thousand years of war, to the Song Dynasty, Mengxi wrote a summary of the world's skills during the war, and then, Zheng He's law of seven times laid a solid foundation for the completion of the book.

On the newly opened card synthesis table and technology tree, Lu Cheng can even find his own Danfang and Thousand Machine City Tricks!

Here's a brief introduction.

"The mechanism of Qianji City started in the early stage of the second hundred schools of thought, in the war against the moon, the thaumaturgy with great achievements, created by Lu Ban, the master of the public loser, and Lu Cheng, the giant son of the Mo family, can cast the building ship and the war weapon, destroy the city and pull out the village, and retreat can make the organ battle fort rise from the ground, and the attack and defense are integrated!"

The details of the above record are so detailed that even Lu Cheng, one of the founders, is amazed, and he doesn't even remember some knowledge and card synthesis methods.

Of course, there is no such thing as the Mystic Mechanism-Jindan.

This can't be either.

I think the same is true of other sects, families, and folk skills.

But there are enough of them.

With this book as the core, the technology tree of Thousand Machines City can be clicked to the law-Ming.

As long as there is energy and materials, a series of Dantang and Tiangong Yuntai can be built on the back of the dragon kun, and the military building can be ...... the [Shenji Battalion]!

Master Lu's focus is very strange!

"I'm going to find this Song Yingxing!!" Lu Ban blew his beard and glared: "Lu Cheng is obviously the master of my public loser's organ, how can he be a big man of the Mo family!! There is a mistake in the record, and I will go to the erratum!! ”

Lu Cheng: "......."

"What's wrong?"

"I didn't ...... In this way, let's get things busy first......." Lu Chengnuo teased: "We urgently need the Innate Spirit Array, the smelting of gold materials, and the [Tiangong Yuntai]. ”

Master Lu is no longer entangled, because process upgrading is indeed the top priority at present.

.......

.......

For 8 rounds, the coalition forces still couldn't move an inch.

Lu Cheng's judgment was right.

The territory of the incarnation of [Eros] cannot be easily set in, and this card is extremely beautiful and extremely dangerous.

A few days ago, the three high-star legions attacked the western foothills, but overnight, the card division on the upper battlefield fell into a state of "love" and "chaos".

However, as soon as I entered the western foothills, I was tired enough to fight on the battlefield during the day, and I had to fight non-stop at night!

Who can stand this?

Iron Man can't stand it!

The next day, it was pushed back, and the front was pushed back to [Huaguo Mountain].

Lu Cheng also has some worries about the current situation, you know, he is not really a peak card master.

Speaker Thunder did not come because of Lu Cheng's relationship on the front line.

According to the current situation of the war, if the reality is probed, the entire landing site will be unplugged.

They all said that they had goods in their hands, so they didn't panic in their hearts.

Therefore, the entire Thousand Machines City took advantage of the Rong season to speed up its actions.

Finally, in the settlement stage of the eighth round, the [Tiangong Gimbal] was built.

Its nine lower mills are long since ceased production.

It means that Lu Cheng's purple card in the current card set can finally be gold-plated!

......

......

Lu Cheng stared at the card surface.

It is said that the Super Card Master can check the development of his domain card through rules, such as realm style, realm core, technology level, energy type, agricultural level, and industrial level.

Obviously, you can't do it yourself.

However, the development brought by Tiangong Kaiwu will directly improve the overall level of Qianji City from the Law-Han Dynasty to the Law-Ming Dynasty during the Second Hundred Schools of Thought, and the improvement is visible to the naked eye.

[Tiangong PTZ] is the first golden 4-star wonder creation, infinitely approaching the superposition.

At present, with Lu Cheng's prestige in Huaguo Mountain, there is no shortage of manpower, and the lower workshop has already completed the processing from white to purple.

Right now, a large number of Trap Spouts are refining Metal.

This set of running decks can process all kinds of metals into [Sword Iron] suitable for sword casting, and according to the records of Tiangong Kaiwu, it is a sword-casting material creation process from [Sword Casting Villa].

The fly in the ointment is that the [Spiritual Qi Bellows] swallows smoke and clouds, and the pollution is quite serious, so Lu Cheng can only pay extra energy to continuously extract the [Water Spirit Method-Xingyun Rain] from the [Water Curtain Cave], the water level accumulated by the two gods to suppress the pollution.

This set, once started, can be said to be burning money.

As early as three rounds ago, Lu Cheng summoned the entourage Miss Fana and the secretary Tang sisters by letter.

Dongyue's attention is now all on the Troyin battlefield, and the deterioration has completely subsided, with Wang Han and Prince Rose in charge of security, and there is no problem.

With them here, you can calculate the cost.

In the final calculation, the production of about every 1-2 star [Sword Iron] will consume 14 gold 1-star energy cards!

Qianji City Lingtian can provide 1 per round, Rong Ji, Rong Withering Life and Destroying Spirit Array can provide 3 cards, Huaguo Mountain can earn 2 pieces by providing territory and gunpowder sales, at this rate, two rounds in Rong Ji, and about 4 rounds in the dry season can get 1 gold 1-2 star [Sword Iron]

It takes about 20 rounds to complete the preparation of metal materials.

And so on, there are 20 rounds for the wooden sword, another 20 rounds for the stone sword, and another 20 rounds for the formation laying.

Do the math, about 80-100 rounds, that is, 8-10 years can form an initial profit situation.

It's already pretty good, but .......

Think about it, starting to benefit does not mean that you have combat effectiveness, how many years is it to accumulate energy and convert energy into combat effectiveness?

Lu Cheng knew that the golden age planned by the coalition to capture the West Coast was only about 100 rounds, and in the master era, the war would escalate in an all-round way!

Can it drag on for so long?

No way..... Looks like the gap has to be opened somewhere else.