He Manman couldn't help but look at the experimental data of the turbofan-6 when he heard this, and then frowned, it is indeed a bigger problem to further improve the performance of the turbofan-6 on the existing basis.

However, as long as the problem is raised, there is a solution, and as long as there is determination, there is no difficulty that no one cannot overcome.

So in the days that followed, the group was caught up in day and night research.

The improvement of this engine was also carried out from February to February of the following year, because He Manman had a unique thinking in the improvement work, and after proposing some improvement methods, he got the opportunity to officially enter the turbofan-6 project team.

So for the next year, He Manman stayed in S City, discussing the problem of improvement with a bunch of old professors, and he gradually grew from it.

As for the school, naturally someone handled the suspension procedures for her, and He Jianye and his side didn't just make a phone call during the Chinese New Year.

With the perseverance of these people, the final design of the turbofan-6 was finally completed in February of the following year.

With their modifications, the maximum afterburner thrust of the engine increased to 138.2 kN, and the maximum thrust to 83.3 kN.

The thrust-to-weight ratio has also been increased to 7.05, and the performance ratio has been greatly improved.

And under the condition of ensuring the same engine reliability, maintainability and fuel consumption rate. The speed of the low-pressure rotor was increased, and the fan was changed from 3 to 2 stages, but the pressure ratio was increased from 2.15 to 2.6.

With the same dimensions as the WS6 and a weight reduction of 100 kg, the afterburner thrust in the design state has been increased by 13.2% and the thrust-to-weight ratio has been increased by 18.9%.

By this time, the engine improvements had been completed, and now it was just a matter of ground tests and flights.

And He Manman has been delaying her homework for a year at this time, although she has learned a lot of knowledge in her work with these professors, but there is no end to learning, and she still needs to enter the school to complete the systematic study.

So after handing over the content he was responsible for to others, He Manman stepped on the train back to the capital.

It's another twenty-hour drive, because I left S City early in the morning, so when the train arrived in the capital, it was only three or four o'clock in the morning.

At this time, it was still the middle of winter in the capital, and when you stood outside, you could clearly look at the white smoke when you exhaled.

followed the bustling crowd out of the train station, but He Manman found that except for the dim street lamps, the rest of the places were black and hollow, which looked very scary.

And just when He Manman was about to re-enter the train station and spend the night, he saw a long figure walking slowly towards the dim light.

In the dim light, the man was wearing a black coat and a pair of boots of the same color, and his facial features were as delicate and extraordinary as a year ago.

However, the aura exuded from his body was more mature and colder than a year ago.

"Xu Qingzhou." He Man blinked, looked at the man who was slowly approaching her, and muttered.

And before she could react, she saw Xu Qingzhou stretch out his arms and hugged her in his arms.

I saw him bend over, his delicate chin gently resting on He Manman's shoulder, the warm breath fluttering between He Manman's neck, and a clear fragrance like a plum blossom lingered between He Manman's nose.

"Xu Qingzhou." He Manman moved a little uncomfortably.

But Xu Qingzhou hugged her tighter and tighter.

"Don't move." Xu Qingzhou said, his voice slightly hoarse.

I don't know how long it took for Xu Qingzhou to slowly let go of her, and then knocked on He Manman's head and said, "You little conscienceless, I thought you wouldn't come back?" ”

"How so?" He Man smiled uncomfortably.

Looking at Xu Qingzhou's distrustful expression, she changed the topic again and said, "Xu Qingzhou, how do you know that I am going back to the capital today?" ”

"What? If it weren't for Mr. Zheng's uneasy feeling about you and giving me a call, would you never have told me that you were back? Xu Qingzhou raised his eyebrows and asked.

"I, I'm not afraid to trouble you, too?" He Manman said goodbye to his face and said with some emptiness.

"Do you have less trouble for me?" When Xu Qingzhou heard this, he raised his eyebrows and looked at He Manman playfully.

When He Manman heard this, he choked, and some were speechless, after all, she had troubled Xu Qingzhou a lot.

"Alright, it's getting late, let's go back." Seeing this, Xu Qingzhou no longer teased He Manman, only rubbed He Manman's hair, and then walked towards the parking place.

Seeing this, He Manman also hurriedly followed.

It was only said that it was late at night at this time, and Huada would definitely not be able to go back, so He Manman was forced to live in the courtyard of Xu Qingzhou again.

After washing up, he heard a knock on the door, He Manman opened the door, and saw Xu Qingzhou standing at the door of the room, still holding a bowl of hot noodles in his hand.

The tempting aroma suddenly drifted into He Manman's nose, and he tried not to suck his saliva, He Manman stretched out his hand and wanted to serve the bowl of noodles.

"What habits have you developed this year, and the reason for eating in the bedroom." Seeing this, Xu Qingzhou frowned, looked at He Manman with some disgust, and said, "I haven't come out to eat yet." ”

It's just that the bowl of noodles is too fragrant, and he hasn't eaten anything hot for more than 20 hours, so He Manman doesn't care about Xu Qingzhou's dislike, and just follows out of the room.

With the clear noodle soup, the white and strong noodles, the green and delicious vegetables and the fried golden eggs, Xu Qingzhou's cooked noodles are still as delicious as he remembers.

Probably really hungry, He Manman picked up the bowl and ate it in a big gulp.

Looking at He Manman's eating appearance, and seeing her face that was obviously much thinner and even had some sunken cheeks, Xu Qingzhou's eyes couldn't help but be full of distress.

But his mouth was full of disgust, "Haven't you eaten all year?" Hungry like this! ”

"There's something to eat, but it's not as delicious as what you make." He Manman replied subconsciously while eating noodles.

When Xu Qingzhou heard this, he rarely had a smile on his face.

"If you like it, I'll keep making it for you in the future."

"Okay." He Manman subconsciously responded, and then thought of something, and couldn't help choking on the noodle soup.

"That, no, no." He Manman coughed while hurriedly swinging