What is the skill of listening to the object?

Jiang Hao was a little confused.

Lathe workers and fitters are easy to say, and they are regular machining jobs.

How does this "listening and arguing" feel unorthodox?

Could it be that as Lao Wang said, the one who knows this skill is the real master?

When you think about it, there is some truth to it.

The machining he is exposed to at his current level is to process parts from materials provided by others, and never involves selecting materials.

It may be that the real master machining parts starts with the simplest selection of parts.

After all, the material is the basis for determining the quality of the part.

For example, gears. At the same level of technology, materials of different qualities are processed, and the durability is definitely different.

Since it's a skill, try to level it up?

Jiang Hao had the attitude of giving it a try, and asked the boss to bring a lot of parts of different varieties and materials, knock them one by one, and then listen to the sound changes.

"Bell~"

"Ding~"

“duang！”

His ears almost deafened him...

Half an hour later, Ma Dong, who was sitting on a plastic chair, complained: "Brother Hao, you can go to work in the gong and drum team with this technique." ”

Jiang Hao saw that the boss next to him was also impatient, so he stopped what he was doing.

He buckled the earwax and crouched back in front of the scraps.

Not to mention, through such a toss, he can really hear some differences.

Even if it's the same ductile iron material, there are subtle differences in the sound of the impact between the two pieces.

He guessed it was the subtle sound changes caused by the different degrees of compactness in the materials.

In the casting process, trachoma and small cavities will occur due to process control differences, including materials from the same abrasive tool, and uneven cold and hot changes may also cause uneven distribution of trachoma in the same cross section.

Of course, he can only hear the difference between different sounds, but he doesn't know which sounds represent good or bad. It takes a lot of experience.

He's only getting 26 XP now, which is still far from the intermediate level.

Jiang Hao can only guess that the biggest difference between the sound and the others is a quality problem, because there must be a few quality problems.

He was crouching on the ground and knocking one by one, when suddenly a pair of white sneakers appeared in view.

"Boss, these are ductile iron on the ground, right?" A straightforward voice spoke.

"Oh yes, yes." The boss ran over with a smile.

Jiang Hao looked at it with his eyes.

On top of the white sneakers is a pair of suspender jeans, a white T-shirt inside, a cargo coat on the outside, and a cute round face with a short ponytail and a few engine oil stains on the face.

A strange combination of cute and capable.

He deliberately glanced at it, and the chest of her overalls was the LOGO of Yangcheng Vocational and Technical College.

A double-ended wrench and a hammer cross each other.

The girl's face flushed, she gasped for air, and then raised her hand to brush her bangs. Inadvertently, another oil mark was left on the forehead.

Jiang Hao guessed that several other oil stains on her face were also caused by this.

Like a little flower cat.

Fang Yue ignored Jiang Hao, who was squatting on the ground, and turned his head to ask the boss.

"How much is a pound?"

Boss: "Six pieces!" ”

Fang Yue: "Five pieces, I want them all!" ”

Boss: "Good! ”

Jiang Hao didn't have time to tell her that the boss shouted at them just now for only three yuan a catty.

"Huh... It's unreasonable! Here's what we picked out first. ”

Ma Dong jumped down from the chair and stood in front of Fang Yue. Jiang Hao also stood up and stood side by side with him.

Who knew that Fang Yue was not stage frightened, but clasped his fists with both hands, and said bluntly: "Two brothers, I am Fang Yue from Yangcheng Vocational College, and seeing each other today is fate, and it is convenient for the two of them to make friends." ”

Ma Dong: ...

Jiang Hao: ...

What is this format?

What about ancient chivalrous women?

Jiang Hao also clasped his fists with both hands and said, "I am Jiang Hao from the School of Electrical Engineering, uh... Fortunately, fortunately. ”

"Then you're welcome?"

Fang Yue smiled slyly, then bent down and reached out to grab the ductile iron material on the ground. Jiang Hao's eyes were quick, and he grabbed her wrist.

"There are so many materials here, we can't finish it, so we can give you a little bit. Don't worry. ”

"Okay."

Fang Yue's speech was short and refreshing.

With a dexterous flip of her wrist, she broke free from Jiang Hao's grip, and she could see that her arm strength was not small.

Fang Yue crossed his hands on his hips and stood in front of Jiang Hao in a posture.

Although her forehead only reached the tip of Jiang Hao's nose, her momentum was not weak at all, so she stared straight at Jiang Hao with her head held high.

Her face is delicate, it is the kind of goose egg-shaped roundness, her face is not the delicate white, but with a healthy ruddy, the eyebrows are very thick, and there is a sassy heroic air.

There are 9 pieces of ductile iron materials selected on the ground, and 2 pieces with problems are screened out, and there are many more that pass the quality test.

Jiang Hao felt that it was no problem to give her two or three.

Looking at her appearance, she is also engaged in machining, everyone is a peer, there is no need to make you die.

"Because these are the ones I picked out, I'll choose what I want first, and you can pick the rest, okay?" Jiang Hao discussed with her.

"Okay." Fang Yue nodded, then asked, "How many do you need?" ”

"Three." Jiang Hao said.

Two rotating axes and one spare part.

Jiang Hao: "What about you?" ”

Fang Yue: "Two." ”

"Then you can choose what you want first."

Fang Yue squeezed out a sweet smile on his face, and then made a 'please' gesture.

Jiang Hao squatted on the ground, knocked them one by one, selected three, and put them behind him.

In fact, these voices are almost the same, he just chose the three he thought were the best based on his feelings.

Fang Yue squatted down next to him and began to whistle leisurely.

She pretended to look at the three materials selected by Jiang Hao casually, and then suddenly threw out two hundred yuan from her pocket, grabbed two pieces, and rushed out of the door.

By the time Jiang Hao and Ma Dong reacted, she had already run away when they chased them out.

"I'm sorry, I'm going to participate in the skills competition, and I need this material!"

Fang Yue's voice drifted from afar, and a gust of wind blew away.

Two tall boys stood at the door, and there seemed to be two fallen leaves floating in their hearts.

Ma Dong: "Brother Hao, have we been robbed?" ”

Jiang Hao: "It seems to be..."

Ma Dong: "Those two pieces of iron must weigh about 30 catties, she can still run so fast with them..."

Jiang Hao: "Don't talk about it. ”

Ma Dong: "Why? ”

Jiang Hao: "Shame." ”

Ma Dong: "Hmm..."

The boss grinned and pinched the two hundred yuan, walked out of the door and asked.

"Young man, do you still need the materials on the ground?"

"Yes, yes."

The two returned to the store dejectedly, then re-selected two pieces of materials, adding up to a total of three, and asked the boss to weigh them, then pay for them and issue the invoice.

They carried three lumps of iron in snakeskin bags, carried them around two buses, and when they returned to school, they missed lunch in the cafeteria.

Jiang Hao sighed a few times all the way, and always involuntarily remembered that Fang Yue whistled and grabbed the iron.

I always feel unconvinced.

Ma Dong was very happy, because he sent Zhang Lingling a "good morning" at 8 o'clock in the morning, and received a "yes" at 12:30 noon. ”

I feel happy when I think about it.

Ma Dong thought about it and sent the photo of Wang Chaoyang and Zhou Liping holding hands and backs that he had taken just now.

Love you in this life: I want to witness love with you regardless of the world's eyes.

Zhang Lingling: ??