Under Luo Shuang''s sad eyes, the shelter sent out a rapid alarm ten minutes later, and then the ground was shaking. Ordinary people with unstable sites were knocked down on the ground one after another.

    The four directions on the southeast and northwest walls of the shelter raised a water blue brilliance respectively, which protected the whole shelter inside, just like half a water blue bowl buckled on the ground, isolating the connection between the shelter and the outside world.

    "Ah ~"

    At this time, the pursuit of the red beetle also arrived. The soldiers who hurriedly did not have time to enter the protective cover were divided into two parts by the red beetle caught up behind.

    One red beetle after another hit the shield hard, but bounced back in the next second. Over and over again, unwilling to give up, the red beetle madly hit the protective cover.

    Everyone held their breath for fear that the last line of defense would be broken through, so what was waiting for everyone was only the final genocide, subjugation, or even genocide.

    "Is this a relic from the civilization of science and technology?" Luo Shuang asked sideways.

    "Yes! It''s the energy crystal as the energy driving force that can support the protective cover! Unfortunately, the time is too tight, and we human beings haven''t had time to crack other products!" Sinan said with a headache. "That guy Gong Feng has been burned by the legacy of scientific and technological civilization!"

    "Are we like a shrinking turtle locked in this blue turtle shell?" Luo Shuang couldn''t bear to see the flesh and blood flying scenes of the soldiers dismembered by the red beetle not far ahead.

    "The energy spar storage is limited. I don''t know when I can support it. I''m ready to fight at any time!" Sinan has been calling all the personnel of the special team through his watch.

    At the moment, Luo Shuang knows that the chief instructor of Longyan special team is Wang Qingyun, the three subordinate brigades of Longyan special team, the captain of blue sword is Longxi, and Sinan is the vice captain! Recently, Long Xi stepped down as the captain of blue sword because his cultivation is about to break through, and Sinan was officially promoted to the captain of blue sword. The leader of the lone wolf brigade is Ling Hui. Now he is ordered back and is mainly responsible for the daily safety inspection of the shelter. The captain of the snow leopard brigade is the most mysterious and has not appeared so far.

    No wonder Ling Hui and Sinan have always looked at each other wrong. We should know that the three brigades are competitive, and none of them is convinced of each other.

    Is this developed by the civilized science and technology brought back from which scientific and technological civilization? Luo Shuang looked at Sinan standing on the high wall and paying close attention to the attack pace of the red beetle.

    Luo Shuang lightly jumped onto the city wall and stood side by side with Sinan. As far as he could see, it was just the red beetle of the earth avalanche tile dog. It was a pity that the soldiers who had not even returned to the shelter made more food in the mouth of the red beetle.

    "Master, the protective cover will last for about ten days. There are no higher-level insects in the future, but I think it is less likely." an intelligent voice suddenly appeared in Luo Shuang''s game watch. It turned out to be a long silent heart in the watch. Since this guy got into his watch, he has been silent. It seems that he is digesting and absorbing the technology on the earth and is also updating and evolving automatically. Now it seems that it is completely integrated with the technology on earth, and Xinyi''s voice seems to be upgraded with more humanized emotions.

    "Only ten days?" Luo Shuang tangled at the bottom of his heart. What should I do.

    "If human beings can thoroughly study the particle gun or laser gun, it seems that there is still some chance of winning," Xinyi commented.

    "What about the mecha?" Luo Shuang thought of the mecha he debugged. Maybe it''s not time for the last card to appear.

    "Machine armor is good, but the number is too small. Human beings have only developed machine armor, but the supporting large-diameter killing weapons have not been developed, and the firepower can''t keep up. That machine armor is just a big fool ~" my heart analyzed with emotion.

    "Is there a way?" Luo Shuang was worried.

    "Let me see, it takes some time to develop the particle gun, but the neutron gun may be ok..." I thought.

    "OK, sort out the data, I''ll go directly to brother Wang!" Luo Shuang can''t estimate much at this time. Whether his behavior will expose his cards and cause the suspicion of interested people. Even if the civilization relics they got with brother Wang last time will be found out, but Luo Shuang can''t care about anything in the face of genocide and subjugation.

    The diameter is toward the Scientific Research Institute of the refuge, where all the elite scientists are gathered, and Luo Yong is also among them.

    Gong Yue and Wang Qingyun are leading this group of scientific research madmen to discuss the final plan of the mecha. Gong Feng is busy as a little boy who takes notes.

    "Brother Wang, are you sure about the mecha?" Luo Shuang asked with a smile, looking at the five tall and powerful mecha set up in the laboratory.

    "Luo Shuang is here at the right time. Just mention your opinion on Longteng 1! If the protective cover can''t hold, it''s time for the mecha to show its prestige! Don''t refuse to drive the mecha at that time! They told me that your physical coordination ability, reaction ability and agility are the most outstanding and excellent." Wang Qingyun said.

    "It''s amazing! I don''t think the weapons of mecha are powerful enough!" Luo Shuang said frankly.

    "There''s no way! The information we got last time is too far from the current science and technology on earth, and we can''t develop corresponding weapons in a short time. Now conventional weapons on earth have limited lethality to insects above the sky level, unless nuclear bombs are used! But that''s the last move! Using nuclear bombs means the beginning of human self destruction!" Wang Qingyun said helplessly.

    "I have a piece of information here. Brother Wang can let them see if it is feasible?" Luo Shuang solemnly submitted a piece of information.

    "Shuang Shuang, don''t make trouble. Our time is very precious!" Luo Yong interposed next to him, but he can''t let his daughter''s insignificant fantasy watch make trouble.

    My daughter Luo Shuang studies pharmacy, but she is not a missile expert. What unique opinions can she have?

    "Oh?" Wang Qingyun actually doesn''t understand these, but doesn''t it hinder the BT ability of a group of scientific research lunatics under him? After half an hour, this information was determined to be feasible by those crazy people! And collect all the resources, maybe you can see the finished product in half a month! Because what they want is not a heavy killing missile like a nuclear bomb, but a large caliber lethal weapon mounted on the arm of a machine armour.

    "Madam President, this information is true!" he Haoming, the most famous weapon expert in China, and the white haired old man were trembling with excitement