Due to the influence of the processing, assembly and adjustment of the parts of the new Backhoe Loader equipment, the friction surface is rough, the contact area of the mating surface is small, and the pressure bearing condition of the surface is uneven. During the operation of the equipment, the concave-convex parts of the part surface are embedded and friction with each other, and the worn metal debris continues to participate in the friction as abrasive, which further accelerates the wear of the fitting surface of the part. Therefore, during the running-in period, it is easy to cause the wear of parts (especially the mating surface), and the wear speed is fast. At this time, if the operation is overloaded, it may cause damage to parts and early failure of the loader.

China's railways will implement their fourth-quarter train operating charts from midnight on Oct 11, CCTV reported. After the map adjustment, 5286 pairs of passenger trains are running on the whole route, 21 pairs more than the current map. There are 10,829 pairs of freight trains in operation, an increase of 41.5 pairs compared with the current figure.

The policy will promote the accelerated development of the intelligent equipment industry.

The annual net profit attributable to shareholders of the listed company was 3.248 billion yuan to 3.596 billion yuan, an increase of 2.088 billion yuan to 2.436 billion yuan, 180% to 210% year-on-year.

As early as in ancient times, people used the hoof feet of herds to trample, rub and tamper the soil to treat the foundations of houses, compact the dams and river banks, and before the mid-19th century, the road works in the West were made of gravel.

Unmanned aerial vehicle is abbreviated as "UAV" in English. Since the birth of the aircraft in the early 20th century, people at that time have proposed the idea of ??unmanned aircraft due to the safety of flying the aircraft. It was not until the 1930s that the British Ferrer Company transformed a "Queen" dual fixed-wing aircraft into an unmanned target drone, which opened the prelude to the entry of unmanned aerial vehicles into aviation history.