
Recently, the Ministry of Communications announced that by the end of this year, 14 provinces including Beijing, Tianjin, and Hebei will implement the online ETC (Electronic Non-Payment Toll Collection) toll collection. The implementation of "one vehicle, one card and one label" in the networked area. In addition, Gu Xia, deputy inspector of the Department of Integrated Planning of the Ministry of Communications, stated at the seminar on comprehensive urban transport development policies that it is expected that by the end of the “Twelfth Five-Year Planâ€, China will initially form an integrated network infrastructure, advanced technology and equipment, and transportation services. Safe and efficient integrated transportation system.
"Daily Economic News" reporter learned that "the "Twelfth Five-Year Plan for Comprehensive Transportation System" requires that by the end of the "Twelfth Five-Year Plan", an integrated transport network with the "five vertical and five horizontal" skeleton will be formed. The total mileage of 4.9 million kilometers.
Investment analyst Guo Fanli believes that the existing transportation system is difficult to meet the needs of economic development. The transportation infrastructure in some areas is lagging behind. In particular, the existing water transport system in the Yangtze River Economic Belt is mostly stagnant and needs to increase investment in engineering. Waterway, improve the transportation system.
The Ministry of Communications announced that by the end of this year, 14 provinces, including Beijing, Tianjin and Hebei, will implement expressway ETC networking. The news released by the Ministry of Communications also confirmed to some extent that the comprehensive transportation system is gradually being formed.
The reporter learned that in 2010, Beijing-Tianjin-Hebei took the lead in implementing ETC networking, and in August 2012, five provinces and one city in the Yangtze River Delta achieved networking. In 2013, Beijing-Tianjin-Hebei networked five provinces in Shandong and Shanxi on the basis of networking. At present, East China and North China have already achieved intranet in their respective regions, but these regions are not connected to each other.
However, by the end of this year, this phenomenon will change and 14 provinces will be networked. By the end of 2015, the ETC will be basically connected with other provinces in the country.
ETC achieves national networking and naturally contributes to urban development. Ren Bin, chief transportation expert of the World Bank’s China Bureau, believes that in the future, urban agglomerations should develop in the direction of convergence of multiple modes of transportation, and establish a multi-level transportation system to boost the development of urban agglomerations. .
The Milling Machine was originally a horizontal milling machine created by American E. Whitney in 1818.In order to mill the spiral groove of the twist drill, American J.R. Brown created the first universal milling machine in 1862, which is the prototype of the milling machine for the lifting platform.The portal milling machine appeared around 1884.Semi-automatic milling machines appeared in the 1920s, and the workbench used the stops to perform automatic conversion of [feed-fast" or [fast-feed".After 1950, milling machines developed rapidly in control systems, and the application of digital control greatly improved the automation of milling machines.Especially after the 1970s, the digital control system and automatic tool change system of the microprocessor were applied on the milling machine, which expanded the processing range of the milling machine and improved the machining accuracy and efficiency.As the mechanization process intensified, CNC programming began to be widely used in machine tool operations, which greatly released the labor force.CNC programming milling machines will gradually replace manual operations.The requirements for employees will also be higher and higher, and of course the efficiency will be higher and higher.
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