On February 2nd, the first day of the Spring Festival travel rush, the mountains in southern Yunnan gradually woke up in the morning light. Mohan Station of China Laos Railway is embraced by milky white fog, just like a quiet ink painting. Not far away, at the entrance of the friendship tunnel connecting China and Laos, two golden lights pierce through the thick fog. A white cross-border train loaded with goods, carrying the morning dew of Laos, slowly enters the Chinese border. At the train inspection yard next to platform 3 of Mohan Station, trains loaded with cross-border goods are quietly waiting for the "physical examination". Dangdang... "At 8:15, the crisp sound of metal tapping could be heard deep in the mist. Several inspectors dressed in bright yellow work clothes, holding flashlights, shuttle between freight trains, exploring every component and section of air duct in the narrow space under the train. As the end of the year approaches, the international freight transport of China Laos Railway is getting stronger. The voice of foreman Li Yongcai came from the walkie talkie: "The humidity is high this morning, look carefully at the cracks!" This 34 year old man has been guarding the country for more than 4 years, leading 7 "vehicle doctors" to "diagnose and treat" the steel camel caravan on this "golden passage". A freight train consists of over 30 vehicles, more than a thousand inspection points, and tens of thousands of key components, while the 'medical examination time' is only 35 minutes. If the inspection cannot be completed within 35 minutes, the train will not depart on time, and subsequent trains will also be delayed. "Li Yong realized the heavy responsibility. At 8:20, he bent down and drilled into the bottom of the car, which was less than 60 centimeters away from the track surface. The inspection hammer lightly tapped on the moving lever of the braking system, and he listened attentively, as if an old Chinese medicine practitioner were knocking on it. Listening to sounds and distinguishing 'diseases' is our basic skill. "Sweat beads rolled down his dark cheeks and flickered in the flashlight. Foreman, the rear 25 vehicles have been relieved of the problem! ”The voice of colleague Duan Kehao came through the intercom. Received, I'll be there right away. "Before he could finish speaking, Li Yong had already crawled out of the car. "The maximum gradient of the China Laos railway is 23.5%, and the air leakage of the brake system is like brake failure, which is a 'myocardial infarction' that must be removed immediately." Li Yongcai said as he hurried to the 25 vehicle position behind the train. Duan Kehao is placing his ear close to the flange connecting the main and branch pipes of the vehicle, capturing the subtle "hissing" sound. Li Yongcai took out soapy water and sprayed it, causing half a fist sized bubble to instantly inflate. Change the rubber pad! "He decisively gave the order. At this point, there are only 10 minutes left until the train technical inspection is completed. Chief, homework is done. "" Received! "At 8:43, Duan Kehao successfully completed the vehicle maintenance, sweat soaking his back. This capable post-2000s young man has been working for over two years and has taken on key positions in the team. Mohan is located at the southernmost tip of Yunnan, with high temperatures and humidity throughout the year. The highest temperature in winter is over 30 degrees Celsius, which is the most comfortable season for our homework; the highest temperature in summer is around 40 degrees Celsius, and the ground temperature can reach 50-60 degrees Celsius, which puts a great strain on our health. I went to the clinic twice last year for heatstroke, "said Duan Kehao. More than four years after the opening of the China Laos Railway, this 1000 km long steel silk road has transported more than 76 million tons of goods. Behind the daily maintenance volume of over 700 vehicles, from Tonghai vegetables to Thai durian, from Laotian beer to electronic goods, is an efficiency revolution where the inspection time has been compressed from 42.9 minutes to 31.3 minutes. The "two must see, three must pry, and four must change" work method summarized by Mohan Workshop is integrated into every step and hammer of the inspector, and embedded in every minute and second of the national maintenance. At Guomen Station, every hammer we strike represents the standards of Chinese railways. ”As Li Yongcai spoke, he lightly scraped the white patterns on the surface of the accessory with the tip of his hammer. Is it a stain left by damp ore or a hidden crack? It depends on the hand feel that has been diligently trained to distinguish. Scientific and technological progress has enabled traditional skills. 41 sets of ST monitoring equipment, such as "Qianliyan", are deployed along the whole line of the China Laos railway. Wheel temperature monitoring, acoustic diagnosis, big data early warning and the old master's inspection hammer are mutually verified, creating a three-dimensional safety net. But Li Yongcai firmly believed that "machines cannot replace the final judgment, just like CT cannot replace the doctor's hand. ”At around 9 o'clock, the fog gradually dissipated, and the sunlight filled the work area. The fruity aroma in the carriage permeated. At 9:05, the locomotive coupling was completed and all 30 carriages passed the physical examination. The train sounded its horn and set off, carrying the sweet aroma of tropical fruits towards Kunming, heading towards the dining tables of countless families. Every year during the Chinese New Year, I have to guard the country's borders, but the thought of these supplies being served on the New Year's Eve table on time is like me participating in the reunion of millions of families. ”Li Yongcai watched the train disappear into the mountains and proudly said. (New Society)