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The concrete (usually with steel bar) is poured directly into the stable and solid roadbed, and the new line of ordinary sleeper and gravel bed is not used. This kind of line is clean, suitable for large volume and difficult maintenance area, especially for tunnel, underground railway, port wharf and stone road base. But its construction investment is big, if because of the construction slapdash or basement instability, concrete layer fracture, cure difficulty. China's overall Taoist route in the tunnel is more than 300 kilometers long
The fully redesigned 2013 Honda Accord returns to the peak with the family-sedan class having a amount of new specifications. Apart from a roomy and high-quality interior, the car's styling is visibly less bulky. Besides, Honda adds power- and efficiency-enhancing direct-injection technology to the Accord's standard 2.4-liter four-cylinder engine. With this four-cylinder, performance is markedly improved. What's more, each car also is sold with antilock disc brakes, active front head restraints, stability and traction control, front seat side airbags and side curtain airbags.
New Car Buying Tips--



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