Under the condition of toponarcosis,using turbine machine to cut off the dental crown,then weging into the elevator to stick out the remnant wisdom tooth.
The increase of cellulous fiber in the hybrid fiber can result in the increase of optimum asphalt content, the reduction of density, air voids and Marshall stability.
A new multiflow model of a pressurized spout fluid bed with a draft tube has been developed to investigate the voidage and the velocities of particle and gas in spout and annular region.