"This is..." "This is mine." Wang Lei grabbed the card before Fan Tong reached out and protected him. "Who is going to grab your card!" Fan Tong glared at him unhappily. "I mean this." His finger pointed at the melted part of the plastic bag, and there was a round thing stuck on it, like a big bottle cap. "What?" Wang Lei followed her gaze, pulled down the thing stuck on the plastic bag and handed it over. "Isn't this a valve on an oxygen bottle!" Zhan Peng leaned closer and looked, not caring about it. "Are you sure?" Fan Tong raised the thing in his hand to him. "Of course! I don't know this. You think we are a vain medical school." Wang Lei also carefully identified it. "Are you really students from the medical school?" Fan Tong took two steps back and looked at the two of them, shook his head and answered it himself. "Hey! What are you looking at? The medical school is not a film and television school, why do you look at it?" Wang Lei regretted it as soon as he said that he was not good-looking, and he couldn't think of anything to save it. He was so angry in his heart!

Fortunately, Fan Tong was just amused by him and did not take the opportunity to ridicule them. "Since you are studying medicine, it just so happens that I really want to ask what will cause the oxygen cylinder to explode?" She asked seriously. "The medical practitioner is not a professional medical equipment..." Wang Lei began to shake his head and think about it again. He just wanted to say that he didn't know, but felt embarrassed. "The oxygen cylinder explosion is a physical explosion." Zhan Peng thought about it and answered solemnly, "There are two ways to cause this situation. One is that the gas pressure is too high and the shell cannot bear it and explode. Simply put, it is like blowing a balloon, with too much gas inside that cannot be accommodated by the epidermis. The other is that the temperature of the bottle itself is increased, but given that the oxygen cylinder is too thick, it is generally difficult to do it. However... ...If the pressure valve is close to full, it is easy to have a fire. When the temperature reaches about 800°C, the bottle will explode, and oxygen is a perfect combustion aid. Once it catches fire, the fire will be difficult to control." "That's it, I know this~" Wang Lei fired a hindsight, "You know? You don't say it!" "I didn't understand what you want to ask for for a while!" After being choked by Fan Tong, Wang Lei was a little embarrassed and kept looking for excuses. Fan Tong ignored him and paced on his own, "Your second statement is exactly the police's current speculation, but is it really just a negligence of the hospital?" She looked at the broken ward that had extinguished the fire, and remembered Hao Renyi, who had finally contacted Han's father, and the face of a gentleman appeared in front of her. She was a little confused. Does it really have nothing to do with him?

"It's so dirty! Do you have any tissues? Give me a piece?" Wang Lei spread his palm at Fan Tong, and a black oil-stained thing the size of a fingernail sticks to his palm. Fan Tong was thinking about things in his mind, mechanically pulling out a pack of tissues from his pants pocket and handing them to him. "Good?" Zhan Peng stared at the dirty thing and muttered quietly. "Did you think of something?" Fan Tong stared at his eyes, full of expectation. Zhan Peng didn't say anything, his eyes stopped in Wang Lei's hand, and quickly searched for information about oil-stained in his mind. "By the way" Suddenly he seemed to remember something, and his speech speed increased unconsciously. "If the oxygen cylinder is mixed or defiled, it is not consciously." After contact with compressed oxygen, grease and oil will oxidize and burn at an extremely fast speed, releasing a large amount of heat, which will increase the temperature, which will also lead to the pressure in the bottle increase. Once the pressure exceeds the limit of the cylinder, it will explode." "So, this is not an accident caused by the hospital's negligent management, but a murder carefully planned by someone!" Fan Tong happily held Zhan Peng's hand, and the excitement of finding a breakthrough in his eyes was full of excitement. Zhan Peng was also immersed in the joy of Lu Qing's clue. "Cough cough!" Wang Lei rolled his eyes and coughed twice. The two people who were stirred and came back to their senses suddenly let go of their hands awkwardly.

"It's too late, let's go back first! I'll find a way to investigate the oxygen cylinder tomorrow!" Fan Tong walked towards the door with his back to them. "Okay," Zhan Peng agreed and followed behind not far or near. "K, what's the situation? I'm fed dog food?" Wang Lei grabbed his hair in confusion.

When he returned to Dai Min, the hotel, he heard new news. Hongkai's villa was unfortunately miserable and was named Wang Ke. Coincidentally, she was the former secretary mentioned by Secretary Qian. According to the community security guard, Wang Ke moved here about a year ago. He heard that her husband was doing business outside for many years, so he rarely came back, so no one had ever seen the male owner of this house. However, the cleaning lady who was responsible for cleaning the park had encountered several times. A gray BMW sedan went in and out of the park to pick her up. Unfortunately, she never saw the appearance of the car owner every time. She just passed by and was basically sure that she was a man. Therefore, some gossiping aunts privately reported that Wang Ke might be the mistress who was hidden in a golden house. Until several
Chapter completed!