"Limited Planning: Traveling alone in the Doomsday" early in the morning of the 30th day.

With the loud "rumbling" sound that broke out from the deep center of the earth, the "third novices protection period" officially ended.

"Master, monitored that the plate movement is increasing activity!" Like the previous two times, the White Queen immediately warned.

The already broken spherical shell of "Doom Arena" once again followed the shell theorem and started the plate collision in adjacent fields. Previously, as Wu Chen completed the "Three-Party Competition Agreement", the "transfer and inherit" field No. 5, the gravity curvature regulator was turned on, and the "broken arc" squeezed into an iron plate and the "broken arc belt" outside the joint field No. 2 and 3 were separated simultaneously. The adjacent fields also quietly transformed from plate collision to plate splitting. After the gravity curvature was adjusted, the threshold between the fields under the No. 2, 3 and 5 inherited by Wu Chen completely disappeared, and the three fields were back-to-back, forming a stable triangular area. The "broken arc belt" scattered in field No. 5 and the "broken arc belt" that constituted the 2 and 3 surrounded the double domains, which were consistently externally, forming a larger-scale "giant arc belt".

At this moment, the first thing to do is to bear.

The "giant arc ring belt" suspended outside the joint field No. 2, 3 and 5 and the "broken arc" outside the unfamiliar field No. 4 collided heavily!

Because it is a secondary enhanced version of the "giant arc ring belt" in the joint field, the collision is far beyond the previous one. For a moment, the landslides and the earth cracks, and lightning and thunder are roaring. The energy between the two mutually squeezed curved arc fields has increased sharply.

"Be careful!" Wu Chen, who was born again, familiar with him twice, and likes his brothers and feet three times and four times, still shouted.

"Master, the distorted field force is opening the threshold bridge." The White Queen popped up the collision scene outside the field.

The moment when our "giant arc belt" on our side was like a sea of ​​scattered mountains and seas, crushing the other party's "broken arc" into a piece of iron plate, like a three-sub-galaxy that was squaring for warmth, the joint fields 2, 3, and 5 with a rotating triangle structure were crushed, and the 4th field group was squeezed into the center of the triangle. Almost at the same time, the aurora that suddenly burst out from the impact surface melted through the threshold. The strange field No. 4 was immediately lifted off the veil and exposed to Wu Chen and his female warrior.

At first glance, it was Manhattan with tall buildings.

The center is surrounded by stars like moonlight. It is located in Stark Building - the female Avengers headquarters!

"According to the established plan, stabilize the defense line!" Although it looked calm, Wu Chen's true vision, which had already seen through the murderous intent!

Under the calm time and space, countless silver "fireflies" are flying out from the underground vents of Stark Building. They gather into silver spirals, surrounding the facade of Stark Building, spiraling up. The thin silver spirals are constantly thickening and lengthening in the spiral as they rise, and shining in the sunlight.

"Oh my god." When the White Queen enlarged the real-time picture, Valkyrie "Valkyrie" Megan Gale couldn't help but feel numb: "These 'silver fireflies' are all miniature versions of Ultron robots!"

"Yes, they have built a piece..." While speaking, Wu Chen had completed the deconstruction of the "Silver Firefly" energy circuit: "So that's it."

"What's wrong, Dust?" Ferosa, the queen of the castle beside her, asked softly.

"They used 'micro-engraved technology'." Wu Chen replied: "That is, in the shortest time, we can build a large number of Ultron robots. The materials consumed are minimal."

"Is the master talking about 'micro-nano manufacturing technology' right?" Queen Bai immediately woke up.

"Yes." Wu Chen nodded slightly.

Micro-nano manufacturing technology refers to the design, processing, assembly, integration and application technology of parts with a scale of millimeters, micro- and nanometers, as well as components or systems composed of these parts. Traditional "macro" mechanical manufacturing technology can no longer meet the high-precision manufacturing and assembly processing requirements of these "micro" machinery and "micro" systems, and must use micro-nano manufacturing technology. Micro-nano manufacturing technology is the basic means and important basis for the manufacturing of micro-sensors, micro-actuators, micro-structures and functional micro-nano systems.

Generally speaking, micro-nano manufacturing includes two aspects: micro-manufacturing and nano-manufacturing.

Micro (meter) manufacturing: There are two different micromanufacturing processes. One is lithography technology based on semiconductor manufacturing processes, LIGA technology, bonding technology, packaging technology, etc. These process technology methods are relatively mature, but there are common problems such as single processing materials and expensive processing equipment. They can only process two-dimensional or quasi-three-dimensional micromechanical parts with simple structures, and cannot process complex three-dimensional micromechanical parts; the other is mechanical micromachining, which refers to the micromachining technology formed by traditional processing technologies such as mechanical processing, special processing and other forming technologies, which can process three-dimensional complex curved surface parts. The processing materials are not restricted, including fine grinding, fine turning, fine milling, fine drilling, micro stamping, micro forming, etc.

Nano (meter) manufacturing: refers to the nanoscale structure, device and system manufacturing technology with specific functions. It is mainly divided into two directions. One is based on micromanufacturing to approach the limit of its manufacturing accuracy and achieves the ability of nanoprocessing. The other is to use new physical effects to control the nanometer order. Nanomanufacturing includes nanoimprinting technology, scribe technology, atomic manipulation technology, etc.

Also included is "microwelding", also known as precision welding, which uses very thin materials and strict tolerances, and usually requires less than 1 micron. This is also a process that is easy to automate and can achieve very high accuracy and consistency. Microwelding is usually used to produce electronic components, and also to produce medical implantable equipment and aerospace components.

…etc. This series of new processes applied to microns and nanometers are collectively called "micromanufacturing (microscopic manufacturing)".

"Dun means that they first micro-create the miniature version of Ultron robot, and then use Pim particles to enlarge it!" The castle queen "Raging Girl" Ferosa immediately understood the concern: "In this way, they only need to consume a small amount of materials to create a huge legion!"

"That's right." Wu Chen almost immediately seized the key plot point: "But there are pros and cons. Because it is a micro-made miniature Ultron robot, even if the body is many times stronger than humans, it is impossible to enlarge to a size comparable to our mecha hunter. This is much better than the worst case we preset before."

"Yes, master." The White Queen's supercomputing power also came up with the same answer: "So, only the female Avenger can zoom in to a size comparable to our Mecha Hunter!"

"They are here!" Wu Chen immediately alerted his companions: "Ladies, prepare for battle!"

"As for order!" The female warriors who had been silent on the Internet immediately responded in unison.
Chapter completed!