The most enlightened doctor

After eight o'clock in the evening, three middle-aged men wearing maintenance uniforms arrived at Yu's house, each pushing a large equipment suitcase that looked quite sturdy.

The three of them looked serious and said nothing. They followed Zhang Hai straight to the master bedroom upstairs, opened their suitcases and got busy...

Nearly an hour later, Zhang Hai came downstairs and told Yu Zhiming that it was okay.

Yu Zhiming went upstairs to the master bedroom and saw a complex device that looked like a satellite pot and had a sci-fi feel set up on the balcony of the master bedroom.

There were two military laptops nearby, connected to two buzzing black metal boxes that resembled servers.

Two men sat cross-legged on the ground, concentrating on operating laptops.

Yu Zhiming walked into his soundproof bedroom and found that in the open space in front of the bed, a 32-inch display screen was propped up with metal brackets. There were also two columnar speakers nearly one meter high placed on the left and right sides of the screen.

There is already an image on the screen, it is a large safe as tall as a person...

Zhang Hai told Yu Zhiming how to adjust the volume, then left the soundproof bedroom with another decoration man, and quietly closed the soundproof door.

As the soundproof door closed, the world where Yu Zhiming lived seemed to have pressed the mute button, becoming silent for a moment.

But after a while, a rustling sound sounded in Yu Zhiming's ears, and gradually became clearer.

This is the sound coming from the column speakers.

Yu Zhiming made a distinction and found that it was the sound of shaking clothes, breathing, and heartbeat...

These voices came from two people, one tall and strong, the other petite. Yu Zhiming judged them to be a man and a woman.

Seeing that there was no movement on the other side, Yu Zhiming had no choice but to urge: "Comrades, I'm ready, let's start the test."

"You can actually tell it's two people?"

Following this voice, a head suddenly appeared without warning and almost covered the entire display screen in front of him.

Yu Zhiming took a step back involuntarily.

He looked at the big head with a black mask on the screen and no eyes. He calmed down and urged again in a very unhappy tone: "Start quickly!"

The next moment, the big head left the screen, and Yu Zhiming saw a petite guy, also wearing a black mask, standing in front of the safe.

The man put a hand-sized object with two antennas and a suction cup-like object on the safe.

Then, the petite man gently turned the combination disk on the safe.

At this moment, the breathing, heartbeat and other noises that Yu Zhiming heard before all disappeared, and turned into the sound of the rotating and rubbing of the cipher disk.

The sound was so clear that Yu Zhiming looked at the safe on the screen, directly followed the signal transmitting the sound, penetrated an unknown distance, and then penetrated the safe, "seeing" clearly inside The structure of...

This safe has a total of three combination disks, that is, three sets of nine combinations.

As if Yu Zhiming was immersed in the scene, he could distinguish them without any difficulty.

"3, 7, 2!"

"6, 2, 8!"

"5, 7, 4!"

Seeing that the safe door was opened a crack, Yu Zhiming felt that his intention was still unfinished, and it felt like it started but ended.

The previous 007's special warfare atmosphere of going deep into the tiger's den is so full, is this the work to be completed?

It's too unchallenging to finish it in ten or twenty seconds.

Yu Zhiming was a little disappointed, but then he thought of something and immediately became excited again.

Isn't this set of sound collection and transmission equipment exactly what Teacher Qi Yue and he have been looking for?

With such audio-visual equipment that can collect all subtle sounds and transmit it with such high fidelity, in the future, when he works at Huashan Second Hospital, he will also be able to conduct physical examinations on patients in Huashan Hospital remotely.

In this case, Yu Zhiming doesn't have to run around. After all, the one and a half hour drive is quite tiring.

Unexpectedly, there was an unexpected big harvest.

When Yu Zhiming was feeling happy, he saw the scene on the display screen change. A middle-aged man with flat hair, thick eyebrows, big eyes, and a square face appeared on the screen.

"Doctor Yu, you passed the test. To be precise, the ability you demonstrated far exceeded our expectations."

"I must say, it's amazing."

The middle-aged man spoke and gave Yu Zhiming a thumbs up.

Yu Zhiming said modestly: "The main reason is that your equipment is powerful. It can not only collect very subtle sounds, but also transmit them intact."

Just as Yu Zhiming was thinking about how to ask for help, the middle-aged man on the screen spoke again.

"Doctor Yu, our people have already started taking action. The real challenge will begin in about half an hour."

Hearing this, Yu Zhiming became energetic again and completed the real work before he could claim credit based on his merits.

He listened carefully to the middle-aged man's introduction, "Doctor Yu, I must explain that the actual combat environment is definitely different from the test environment, and the sound quality and picture quality are definitely much different."

"Also, we currently don't know the specific structure of the safe we ​​are facing."

"Isn't it the safe in the test?" Yu Zhiming asked in confirmation.

The middle-aged man shook his head and said, "No."

"The information we currently have is that this safe is a product carefully designed by a combination lock master."

"After the safe was made, he invited five well-known locksmiths, but none of them succeeded in opening it within 24 hours."

Yu Zhiming said with high morale: "I like challenges."

The harder the task is, the greater the credit will be, and then he will have the confidence to ask for this equipment...

In order to successfully complete the task, Yu Zhiming began to close his eyes and rest...

Until he heard, "Doctor Yu, it's started!"

Yu Zhiming opened his eyes and saw that the image on the screen was shaking and the light was dim.

However, he could distinguish that the metal door displayed on the screen had a horizontal row of nine ball handles on it.

There was also a circle of fine scales engraved on the handle, and Yu Zhiming could be sure that it was 360 scales.

Immediately afterwards, Yu Zhiming saw a suction cup-like object sucked on the family door.

Three or four seconds later, Yu Zhiming saw a gloved hand gently turning the first ball handle on the left hand, and finally there was a slight sound coming from the columnar speaker...

Just this sound...

Yu Zhiming did not hear any gear sound, but only a slight friction sound.

There was also a shaking sound...

"Turn the handle faster." Yu Zhiming said.

The next moment, Yu Zhiming heard a more obvious shaking sound.

"There is liquid shaking, or a liquid with a very high density." Yu Zhiming made his judgment.

At this time, a strange man's voice suddenly sounded, "High-density liquid? It should be mercury."

"I understand, the sphere filled with mercury is insulated, but it must be inlaid with two points of metal, which can be connected to the outside world through mercury to form a conductive path."

Hearing this analysis, Yu Zhiming immediately had a picture in his mind, a glass ball filled with half mercury, with a small piece of metal inlaid at each end of the glass ball.

What Yu Zhiming had to do was to connect the metal on the glass ball with the metal outside through mercury to form a path.

This is extremely difficult, much more difficult to distinguish than the cipher mechanism with gears as the main body.

Yu Zhiming had to find the almost insignificant difference in the extremely subtle friction sound.

In order to successfully complete this task, and to be able to confidently ask for this set of sound collection and transmission equipment, Yu Zhiming directly opened fire, and the blood flowing into the brain increased by nearly 20% compared with before. His ears twitched involuntarily, allowing himself to enter a state of complete oblivion and concentration...

In his mind, a huge glass ball was slowly rotating, and the mercury inside was slightly rippling left and right.

Accompanied by the occasional strong and weak rubbing sound...

Suddenly, there was a slightly silky sound of "四" that gave Yu Zhiming a different feeling.

"Stop!"

He subconsciously shouted to stop, and then said: "Turn back ten small scales..."

"Turn forward four scales..."

"Okay, the next handle..."

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