The so-called energy absorption and conversion device is the machine that sun Cheng once enjoyed to supplement energy to the core in Starscream''s base.

    This is a unique equipment on Cybertron, which can quickly convert electric energy into high-purity energy liquid for storage. It is a vital strategic equipment for mechanical life such as Decepticons and Autobots.

    Decepticons'' kindling and core constantly consume energy and need to be supplemented regularly. Otherwise, once their own storage is lower than a certain proportion, they either go to sleep to minimize their consumption, or wait for the arrival of aging and decay.

    Although senior Decepticons and Autobots, including sun Cheng, have the ability to directly absorb electric energy to supplement energy.

    However, compared with special energy absorption and conversion devices, their efficiency of absorbing electric energy conversion is not only worse, but also takes a lot more time.

    In the past, sun Cheng did not have that condition. He could only absorb the power generated by the diesel generator in the base and barely recover some consumption.

    Now he has a good card like jazz''s memory chip. After the attack refused to take out his sonic vertigo gun in exchange, he immediately chose a set of energy absorption and conversion devices.

    After completing the transaction with the attack, sun Cheng didn''t stay in the base all the time.

    The reproduction and upgrading of plasma pistols require equipment and materials. In addition, they are running around to place orders and purchase materials for the construction of base 2.

    A few days later, the pioneer sent a communication from Brazil. The first batch of materials purchased last time before he returned to reality had arrived in the amanbai mountains where base 2 is located.

    The large underground karst cave in the remote part of the amanbai mountains is the No. 2 base he has long selected, and now it is finally going to start construction.

    After learning the news, sun Cheng immediately squeezed out four engineers from base 1 and sent them to Brazil twice.

    Their identity is too special. Let alone hiring humans to help. I''m afraid if they show their face in front of people now, there is a great chance that they will be discovered by the U.S. government, which is eager to look for them all over the world.

    Although unwilling to admit it, sun Cheng knows better than anyone that unless Starscream or shockwave summons the Decepticons to the earth, there is really no way to fight the most powerful country on earth with only three or five senior Decepticons.

    "Master..."

    The forerunner respectfully welcomed sun Cheng with a small container in his hand into the depths of the mountains.

    "This is the cave?" Sun Cheng followed him and entered the inaccessible mountains. He walked in a canyon for more than half an hour before he reached the cave. He was not interested.

    When he delivered goods here a few days ago, in order to save time, he basically left immediately after handing over with the forerunner.

    To put it bluntly, we are still understaffed.

    The ten engineers traded from the attack had to study both spaceships and plasma pistols for him, as well as the expansion of two bases.

    If it were not for their mechanical life, as long as the energy was not consumed, they could work all the time, and no one could afford it.

    Hearing the speech, the forerunner immediately replied respectfully, "yes, master, this is it!"

    Sun Cheng looked around and nodded.

    The underground karst cave selected for the site of base 2 is located in a canyon surrounded by mountains deep in the amanbai mountains.

    There is no other means to enter here except walking and aircraft. For weak humans, it is not too much to be a Jedi.

    The pioneer chose No. 2 base with a good environment. When he stepped into the underground karst cave, sun Cheng was more and more satisfied, "good!"

    This underground karst cave can be regarded as a miracle, and it is worthy of the gift of nature.

    Its entrance is spacious and can be no less than 10 meters in length, width and height. The first section of the cave has rugged curves, but no matter walking to the depths of the cave, there are several open underground karst caves hundreds of meters away. I''m afraid the largest one is not as big as three football courts, and the smallest one is the size of three or four basketball courts.

    The terrain in the cave is uneven, with raised stone pillars and sunken puddles. There is even a lake in the cave. The depth of the lake is connected with an underground river. Along the underground river, it can flow all the way into a long river in a canyon 20 kilometers away. It is not only safe, but also has great development potential.

    Although some people are sorry for the gift of nature, the four Decepticons engineers sent by sun Cheng have no human protection consciousness. They have already begun to use machines to constantly destroy the stone pillars in the cave and smooth the ground, and began to build the cave.

    Sun Cheng was satisfied and praised the pioneers again. "Yes, you should pay close attention to your work here and try to do it well in half a year."

    The forerunner was surprised. He looked up at Sun Cheng and asked, "master, do you need to hurry?"

    In principle, mechanical life can work all the time as long as the energy is not consumed.

    But the reason why they are called life rather than machines is that they, like humans, have joys and sorrows, as well as fatigue and want to rest.

    Sun Cheng''s request, if only he and four engineers are working on it, let alone half a year, it is very reluctantly to finish it within a year.

    After all, the No. 2 base started almost from scratch. It not only needs to level all underground karst caves, strengthen earthquake proof structures, but also lay lines and pipelines, and dig other emergency escape routes and waterways. All these quantities are pressed on these engineers, and the workload is not small.

    Sun Cheng frowned. He was not dissatisfied with the question of the pioneers, but worried about the situation in the United States.

    After pondering for a moment, he replied, "you hurry first. Depending on the situation at base 1, other engineers may be transferred. The domestic situation in the United States is unknown. I''m going to take a risk to test what nest is in the end in a few days?"

    Not long after the Las Vegas war, he once obtained some information about the Autobots and the U.S. government by buying and installing an insider in the U.S. government.

    Unfortunately, sun Cheng''s insiders still can''t reach the most critical places, so he can only confirm that the Autobots may have established a cooperative relationship with the U.S. government, but the specific content is not clear.

    This is by no means good news!

    Sun Cheng dares to use his core guarantee. Now he is definitely on the blacklist of Autobots, and now he may have replaced the dead Megatron and the shock wave that is temporarily out of the earth and temporarily ascended to the top of the list.

    No way, not to mention the losses he caused to the U.S. military in the war in Las Vegas. Just because he tried to kill the Bumblebee and took the Jazz''s semi organism when he fled, he was hated by the Autobots and the U.S. government.

    That''s why he had to be vigilant. If the Autobots reached cooperation with the U.S. government and even began to eliminate the Decepticons on earth, sun Cheng would definitely be the first target to bear the brunt.

    ps：

    My thoughts are almost straightened out. I should be able to resume normal update tomorrow.