Fortunately, although their team was lost, the personnel were not lost, and more than 300 people were still there. Pen, fun, pavilion www. biquge。 info

And as the main force, in comparison, the dry food brought is also more, and there is still the strength to hurry.

Soon, as Yan Lan asked, the warriors carefully spread out in front of them, grabbing the hay on the ground and using some of the grease they carried.

Animal fats and fats are different from vegetable fats, and they are all resin, which was originally used as torches, but now they can be considered to come in handy.

The grass that has not dried up, put it on the fire, the smoke is so thick that people can't stand it, like bacon, but after the moisture in the grass is dried, the fire is lit, although it can only last for a short time, I think it can help Yanlan.

Three hundred people started to do it, and it didn't take long for dozens of fires to be taken care of, and at the same time they set fires on fire.

"Ahem, ahem." He couldn't help coughing, the fog and the smoke after burning, that feeling, was about to hang.

Yan Lan was very calm, and there was a small fire in front of him, and he extravagantly used some wooden spears and rattan armor.

There were coughing sounds everywhere, but fortunately, it wasn't too long, and a fire was ignited, and sure enough, although through the fog, you could still see a little starlight, but if you want to disperse, you can't do it.

And this distance is also limited, Su Yang judged that it was only about two hundred meters at most, in this case, it was not easy.

I didn't bother Yanlan, and I didn't have the heart to learn, this thing can only be understood and not spoken.

He suddenly thought that the blood wolf actually wanted to occupy the magpie's nest, and it was really too empty to be a wall.

Although at present, the Taixu city wall is only about six meters high, so he called it off, but it is enough to block the external enemy.

The reason why he could not complete the height of 10 meters on time was because the wall was thickened, and at the beginning of the construction, he expected the thickness of one foot to be in accordance with the specifications of pure stone and the design of the retaining wall.

That is to say, the modern commonly used retaining wall stone specifications, the width is about one foot, the length is not more than three feet, can weigh more than two hundred catties, than the same volume of solid bricks to weigh dozens of catties, the more critical is that the stone is a whole, it must be stronger than the bricks, there are few gaps, and there is no cutting corners.

And the weight of a cube can differ by nearly half a ton, and the overall city wall is not half a star.

With large long stones, the width, that is, the thickness is two or three meters, can weigh 34 meters and the height is stress-free, and can be used as a reservoir embankment. But if it is made of bricks and cement, the same design will be very tolerant of bursting and collapsing.

Of course, the relative cost of using stone is too high, so most reservoir dams are designed with retaining walls, the slope is oblique, stepped type, and the middle is filled with a lot of earth.

Later, he used the "ring beam" and "pilaster" design to help the city wall bear the load, and widened it by more than one meter. And the thickness of the pilasters had to be doubled.

In addition, the section of the city gate can be more than five meters long, which looks like a square.

In this way, the wall that should have been ten meters high has shrunk directly, and next year it is planned to directly use large stones on both sides of the city wall to reinforce, and widen and thicken it again, which is another big project, so let's get through the current difficulties first.

"Su Wu, alright, Yanlan has found her way." The shrine maiden pulled him and said happily.

"Ah, it's all right." Su Yang came back to his senses, and he pondered the city wall, and this is it?

Looking into the distance, Mars is gone, but the smell of smoke still fills the air.

He stood still, raised his arm and pointed in one direction, and said in a loud voice: "Su, it's over there, the difference won't be very big." Now it's up to you. ”

"Okay."

Su Yang immediately took action, and the method was quite simple, that is, to connect the spears of the warriors and artificially form a parallel track.

The spears were tied directly to the spears, and they became two tracks more than a hundred meters long, and the warriors put the tied and connected spears on their right shoulders to ensure that the spears were not bent when walking, and that the people behind could only look at the person in front of them, and could not cross over to see the people in front.

In addition, there are two super spears, if one of them goes astray, you can use the other one as a reference.

Or use the method of solitaire, first by one road people stand, another road more than 100 people to the front, the end of the spear to the front of the other, to ensure that the straight line extends, stand still, take over, so that the probability of direction deviation is smaller.

Both methods are feasible, the former will be faster and the deviation will be relatively large, and the latter will be relatively small and time-consuming.

However, as soon as he said his thoughts, everyone said that they didn't understand, and Yan Lan also shook his head, and there was no concept of parallel lines in his mind at all.

The so-called parallel lines are two straight lines in the same plane that never intersect or coincide.

Fortunately, he hadn't forgotten that little bit of math knowledge, and it didn't come in handy.

"Two lines, drive away." No matter how much it is, it is the most important thing to get out of the fog first, to ensure that his team has combat effectiveness, even if he can't find the remaining team of the blood wolf, as long as he can have combat effectiveness at the moment when the fog dissipates, he can deal with the crisis.

As he went, he asked the fighters to shout the slogan together: "One, two, one." ”

Lift your left foot and your right foot at the same pace. When the distance between the two lines is widened, just judge from the back based on what you see, you can make sure that the other side is off, that is, the straight line cannot see the people in front of you.

By navigating the fog this way, even if you end up off course, at least no one will get lost, and you will always be able to get out of the fog unless the fog covers all areas.

He calculated, at this pace, the speed is estimated to be five or six kilometers per hour, and in more than an hour, he can walk back to Daocheng from the place where they entered the fog.

According to the situation when the blood wolf team appeared at that time, he expected that as long as he didn't go around in a circle in the fog, he should be able to get out in about two hours, but if he walked in both directions, then maybe he wouldn't be able to do it.

That is, he expected the fog area to be an irregular rectangle, and they were going in the direction of the widening, and if it was going long, it would be tragic.

Now I hope Yan Lan's judgment will not be wrong, and the stupid method he used will work.

As time went by, I don't know how long I walked, and I took a break halfway, but I didn't find reliable coordinates, and I didn't find anyone, and the traces on the ground were no longer noticeable, and it was impossible to take a few steps to carefully investigate.

"Rest for a while, keep going, hurry up, and you won't be able to see anything until nightfall." He suddenly noticed that the visibility in the fog had become dim, and although he could not see the sun, he could infer that it was probably evening.

Once it is night, and the fog is heavy, it is difficult to get out even if there is a way.

"Ah, be careful."

"Leg, my leg hurts."

Suddenly, there were cries of pain from the rear, and there were fighters who were attacked. (To be continued.) )