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A substantial reduction in the seamless rail joint, reducing the impact of rail wheels through joint, which saves line maintenance costs, prolong the service life of rail, abate the locomotive vehicle noise, etc., therefore, developed rapidly. In the 1930s, German and American railroads began to carry out small test lines, and by 1981, the world had laid a seamless line of about 300,000 kilometers, of which China lay about 8,000 kilometers
Gate management principles: 3.5 to 4.95 M by crystals of sinusoidal oscillation, dividing by the frequency divider is about 7.8 K sine wave, the triode power amplifier input after door plank with coil (7) large coil electromagnetic launch, by the gate 1-6 area to receive coil respectively. After receiving, the received signal are compared with those of the reference signal, found that after the change, change the acquisition card output level, the CPU in 300 milliseconds for 6 location data acquisition card scanned, determine the metal's location and output display
Sales are almost able to begin for your Mercedes SLS AMG in European countries, with the Us market obtaining the taste in 2011. The price tag for this Mercedes is predicted to become a lot more than $200,000 Usd, so that it is one of the most expensive sports cars for the streets, although still behind other big brands like Ferrari and Lamborghini.
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