"Hehe, that's not a problem, father-in-law. Pen & Fun & Pavilion www.biquge.info" Xia Hongsheng said to Li Shimin: "The land of Tubo is extremely high, and because of its extremely high terrain, the air is thin. People in the Central Plains, when they first enter the land of Tibet, often have symptoms such as headache, insomnia, loss of appetite, tiredness, and difficulty breathing, which is called altitude sickness. It is not too difficult to solve it, before going to Tibet, eat Rhodiola for dozens of days, and after arriving in Tibet, you must not go fast, but go up in a stepped way. That is, after marching for four or five days, stop and camp for four or five days, and after getting used to it, stop and camp for four or five days after marching for four or five days, so that the discomfort of the body can be greatly relieved. ”

"In addition, the terrain of Tibet is extremely high, so the temperature is very low, and it is easy to get cold. And because of its thin air and poor breathing, it is very easy to develop lung disease after wind and cold, and it is also necessary to do a good job of cold protection and warmth. Xia Hongsheng added: "In fact, the special combat team members of the Tang Blade have the experience of surviving in the land of Tibet, and they have all disguised themselves as Tibetans. In order to accumulate experience for the future war between the Tang Dynasty and Tibet. ”

"Oh?" Li Shimin was stunned: "I don't know this yet." ”

"When the Datang Blade was established, there was this item." Xia Hongsheng said: "Since they are the absolute elite of the elite and are special fighters, they must be able to adapt to a variety of different environments and be able to maintain combat effectiveness in a variety of different environments, so high-altitude areas are also one of the environments for their training." ”

Li Shimin was stunned again: "High altitude? ”

"Uh......" Xia Hongsheng scratched his head, why is it difficult to communicate? So I had to explain: "This ...... The word altitude is a noun used in the geography class taught by the college professors, and the so-called altitude is a unit of measurement of altitude. Refers to the vertical distance above sea level at a certain point on the ground. The sea level is the sea level, and the length of a place above the sea surface is its altitude. Let's take Chang'an, for example, with an altitude of 1,000 and 24 meters...... Oh, this meter is the unit of length used in the military aircraft workshop......"

"I know!" Li Shimin is very concerned about the military aircraft workshop, and naturally knows the various measurement units used in the military aircraft workshop. And said: "In other words, Chang'an City is one thousand and twenty-four meters above the sea?" ”

"Not bad!" Xia Hongsheng nodded and said: "The ground is uneven, and if you take Haiming as the starting standard, it will be easy to get their different heights." ”

Li Shimin nodded and asked interestingly, "What about the land of Tibet?" ”

"In the land of Tibet, the average altitude is almost 4,000 to 6,000 meters high, and the highest place has reached more than 8,000 meters!" Xia Hongsheng replied.

"So tall?!" Li Shimin was taken aback.

"So, it's perfect to make it a high wall of Datang." Xia Hongsheng said: "If it is obtained for Datang, it is an insurmountable barrier for Datang, a tall and solid city wall, but if it is obtained for others, then it can be encircled by Datang and blocked under the city!" ”

Li Shimin was speechless, lowered his head again, gestured on the map with his hand, circled the piece of Tubo, and then fell down with a fist, and said in a deep voice: "This place must be from the Tang Dynasty!" ”

"Father-in-law, Shengming!" Xia Hongsheng saluted and patted his ass.

Li Shimin closed the map and said, "Don't worry, son-in-law, this matter will be discussed by the Ministry of War." By the way, the virtuous son-in-law came here by himself today, but what happened? ”

Speaking of the matter of Tubo, Xia Hongsheng almost forgot what he was going to do, and when he heard Li Shimin's question, he suddenly remembered again, and hurriedly turned around and picked up the wooden box next to him, and said: "The son-in-law has two things to report to his father-in-law!" ”

"Oh, what's the matter?" Li Shimin raised his eyes and looked at the wooden box in Xia Hongsheng's hand and asked, "What's in that box?" ”

Xia Hongsheng opened the wooden box, took out the contents of it, and said: "Good to teach my father-in-law to know that this is a new thing made in the military machine workshop, called a lighter, which is a thing to replace the fire fold." ”

"Lighters?" Li Shimin looked curiously at the small iron box in Xia Hongsheng's hand.

"Let the son-in-law demonstrate for the father-in-law." Xia Hongsheng said, then opened the lid and swiped it with his hand, only to hear a stabbing sound, and a flame appeared.

Li Shimin's eyes widened: "The virtuous son-in-law will conjure fire out of thin air again?!" ”

"Father-in-law, this is not a son-in-law conjured out of thin air, and the son-in-law doesn't have that ability!" Xia Hongsheng said with a smile, walked up to Li Shimin, pointed to the lighter and explained to Li Shimin: "This is made by the firearms master in the military aircraft workshop. Underneath the box was kerosene, and from inside the kerosene came a section of wick wire. Here's a gear, with a flint in between. Then, with a stroke of his hand, the gear rubbed against the flint, and a spark burst out, and the spark fell on the wick line infected with kerosene, and it caught fire. When not in use, close the lid and the fire will be extinguished. ”

"Oh? Let me try! Li Shimin took the lighter from Xia Hongsheng's hand, followed Xia Hongsheng's example, opened the lid, held the gear with his hand and swiped down, stabbing a few sparks came out, and a small flame was ignited.

Li Shimin looked left and right, hurriedly picked up a piece of paper from the desk, leaned in, and was immediately ignited by the flames.

"Good! Good! Li Shimin watched the paper being ignited, was very excited, and then snapped the lid with his other hand, and the flame was extinguished again.

Li Shimin opened the lid again, opened it again, and then closed the lid and extinguished, back and forth.

"Good stuff! Good baby! Li Shimin was excited: "With this, there is no need to be so troublesome as the fire sickle, and there is no need to bring a fire fold, let alone worry about the fire fold being extinguished!" Heck, wouldn't you be able to light a fire whenever and wherever you want! Good! Good! Good! ”

Li Shimin's eyes lit up and looked at Xia Hongsheng.

Xia Hongsheng understood Li Shimin's thoughts, so he said: "The cost of this thing is not high, it is not difficult to make, and it can be mass-produced." Whether it is in the military or in the people, it is enough to be of great use. ”

"Hehehe! All right! The military aircraft workshop is really a surprise! Li Shimin was very happy, and kept playing with the lighter back and forth in his hand: "En? I see how many ...... are in that box."

"Uh......" Xia Hongsheng looked at the box and said, "These are just prototypes, if your father-in-law wants to show them...... Ahem...... Use, I'm afraid it's not good-looking, why don't you let the son-in-law go back and design a pattern for the father-in-law, and then dedicate it to the father-in-law. ”

"Hehe, this isn't ugly! And it is a prototype, which is more significant. Li Shimin said with a smile: "As for what the virtuous son-in-law said, well, it's not impossible." I'm still looking forward to the pattern designed by my son-in-law. ”

Xia Hongsheng almost rolled his eyes, which means that these not only have to be taken away, but also have my son design a good-looking one for you?