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以炼油厂汽油碱渣为原料,通入硫酸或CO2中和后去除水相得到粗酚,粗酚经过分馏处理得到馏分在170～200 ℃的混合酚.在适量的混合酚中......
Development of a Dynamic Modulus Prediction Model for Hot Mixture Asphalt and Study of the Impact of
The most famous model known in prediction of dynamic modulus for asphalt concretes<span style="font-family:Verdana;"> is......
<div style="text-align:justify;"> <span style="font-family:Verdana;">Seismic refraction investigations have been carried......
